James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

126 questions answered
Under 5 hours taught

James provided

Email address
Β£32per
hour

Hi, I'm James

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry and will be returning to complete a Masters degree in Systems and Synthetic Biology next academic year. I am a friendly and patient tutor with experience tutoring at all levels to multiple age groups.

My availability

7am - 12pm
12pm - 4pm
4pm - 10pm
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday

My answers

Asked by Abigail Hope

Science πŸ”¬
What is the radius of an atom to approximately............ manometers?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

The diameter of an atom ranges from about 0.1 to 0.5 nanometer.

Asked by Hamza

Science πŸ”¬
Describe in detail, the functions of the reproductive organs (testes, sperm ducts, prostate gland, seminal vesicles, urethra, and penis) and how each organ works together in the reproductive system?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

The motivation behind the organs of the male conceptive framework is to play out the accompanying capacities: To deliver, keep up, and transpo...Learn more

Asked by Ayse

Physics πŸš€
I don't understand what stopping potential is, how is it work and why it is needed. It says in the book that it makes the current zero but I don't understand how is this related to photoelectricity. Thank you so much!?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

HTTP/1.1 200 OK Cache-Control: private 1. By applying a potential (interfacing a power pack or battery) 2. Light is comprised of photons eac...Learn more

Asked by Doleen

Chemistry βš›οΈ
What is the balance equation of an antidepressant?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Antidepressants are meds used to help individuals who have melancholy. With the assistance of these misery solutions, the vast majority can accomp...Learn more

Asked by Chitra

Chemistry βš›οΈ
How does inert pair effect influence the chemistry of Pb and Bi?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

The idle combine impact is the inclination of the two electrons in the furthest nuclear s-orbital to stay unionized or unshared in mixes of post-cha...Learn more

Asked by Chitra

Chemistry βš›οΈ
Why liq. NH3 cannot be used as a leveling solvent for NaOH and NaNH2?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

If you really want to make a solution of HClO3, then indeed the way to go is reaction of dilute sulphuric acid with barium chlorate. Another option,...Learn more

Asked by Jane

Science πŸ”¬
How does chemical energy separate electrical charges in cells?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

There are various sorts of batteries, however they all capacity dependent on the equivalent fundamental idea. "A battery is a gadget that can stor...Learn more

Asked by Lwendo

Science πŸ”¬
Can someone help me? The diagram shows a water butt used to collect rainwater. A tap allows water to rainwater from the water butt in a watering can. If the tap was placed higher up what difference would it make to a rate of flow from the tap?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Aside from the compound contrasts, I'd state rainwater is a vastly improved decision in drier parts of the world, given the shortage of water there....Learn more

Asked by Courtney

Science πŸ”¬
Are scientists still trying to make a robotic bee?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

An automaton that can fertilize blossoms may one day work one next to the other with honey bees to enhance trim yields. Around 75% of worldwid...Learn more

Asked by Max

Science πŸ”¬
Can the Earth's rotation reverse, like its magnetic polarity? Is there anything that could cause the earth's rotation to reverse?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

"The Earth's attractive field is believed to be created by smooth movements in the fluid, external piece of the Earth's center, or, in other words...Learn more

Asked by Liam

Science πŸ”¬
Are pulsars related to quasars?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Let's begin with a neutron star. Stars have an existence cycle as well. As they age, they become bigger and in the long run fall under their very ...Learn more

Asked by Liam

Science πŸ”¬
Are pulsars related to quasars?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Let's begin with a neutron star. Stars have an existence cycle as well. As they age, they become bigger and in the long run fall under their very ...Learn more

Asked by Tim

Science πŸ”¬
How do humans interfere in the phosphorus cycle?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

For the most part through the expansion of phosphate-based manures and mining phosphate shake. Clarification: Phosphate manures are regula...Learn more

Asked by Ann

Science πŸ”¬
What is the importance of teeth in home science?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Analysts found that tongue and tooth brushing in a blend with dental flossing altogether diminished gingival seeping by 38 percent following a fou...Learn more

Asked by Max

Science πŸ”¬
What climate type is found in Los Angeles and describe its major characteristics?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

A Mediterranean atmosphere. Clarification: Los Angeles is named a warm Mediterranean atmosphere. A Mediterranean atmosphere is a particular ...Learn more

Asked by Max

Science πŸ”¬
What are some ways in which human activities affect rates of erosion globally?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

people have an effect on erosion charges in a number of ways throughout the globe. research has shown that people now cause extra erosion than natur...Learn more

Asked by Max

Science πŸ”¬
What are some ways in which human activities affect rates of erosion globally?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

people have an effect on erosion charges in a number of ways throughout the globe. research have shown that people now cause extra erosion than natu...Learn more

Asked by Sarah

Science πŸ”¬
How the atmosphere, hydrosphere, solid Earth, and biosphere are each related to the death of a star that occurred billions of years ago?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

To find to that solution, we need to begin at without a doubt the get-go - soon after the Enormous detonation. This was a period when there were n...Learn more

Asked by James

Science πŸ”¬
Whats animal agriculture's effect on the environment?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Animal agriculture has a full-size and negative impact on the environment. 1. animal agriculture makes use of numerous land, 2. greenhouse gas em...Learn more

Asked by Richard

Science πŸ”¬
What is fracking?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Fracking is the process of injecting liquid at high pressure into subterranean rocks, boreholes, etc. so as to force open existing fissures and extr...Learn more

Asked by James

Science πŸ”¬
How do I become a a professional astronomer?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Most astronomy positions require a Ph.D. in the field of astronomy, which usually takes 5-7 years to complete. These programs are likely to contain ...Learn more

Asked by James

Science πŸ”¬
How much of the Earth's land is protected?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

With 14.7 % of the Earth's land and 10 % of its territorial waters under protection, the world is on track to meet a major global conservation targe...Learn more

Asked by Audrey

Science πŸ”¬
What path does light take through a refracting telescope?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

They focus the light and make distant objects appear brighter, clearer and magnified. This type of telescope is called a refracting telescope. Most ...Learn more

Asked by James

Science πŸ”¬
What are the river processes of erosion, transportation, and deposition?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Erosion: the wearing away of rocks and soil and other solid materials. Transportation: the movement of rocks, soil and silts by the river Depositi...Learn more

Asked by Audrey

Science πŸ”¬
What are the main functions of phosphorus in living organisms?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Phosphorus is a chemical element found on Earth in numerous compound forms, such as the phosphate ion (PO43-), located in water, soil and sediments....Learn more

Asked by Swaathi

General πŸ›
I want to snap a picture of the question?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Unfortunately, the app doesn't currently support this. If you write it out, someone might be able to help!

Asked by Sarah

Science πŸ”¬
What do these terms mean in the nitrogen cycle: denitrification, nitrogen fixation, lightning, bacteria, and nitrates?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Denitrifying bacteria are bacteria which remove the nitrates or nitrites from (soil, air, or water) by chemical reduction. Nitrogen fixation is ...Learn more

Asked by Audrey

Science πŸ”¬
How are granite and rhyolite the same, and how do they differ?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Similarities: - Granite and rhyolite are both types of felsic rocks Differences: - Granite contains feldspar and quartz rocks as well as the s...Learn more

Asked by Tim

Science πŸ”¬
Why is Pluto now classified as a dwarf planet? Why was it downgraded?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

The International Astronomical Union (IAU) had a vote which was very close. They defined three criteria which a planet must satisfy. - It must be...Learn more

Asked by Richard

Science πŸ”¬
What are America's major sources of primary energy?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Most of the energy consumed in the United States comes from fossil fuels (petroleum, coal, and natural gas). These fossil fuels and crude oil-based ...Learn more

Asked by Micheal

Science πŸ”¬
How do you calculate the distance above the surface of the earth to geosynchronous orbit?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

The force of gravity acting on a satellite is given by the formula F=GMm / r2. Where G=6.67384 M=5.972β‹…1024kg the mass of the Earth, m...Learn more

Asked by Audrey

Physics πŸš€
How can water resources be conserved?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

There are multiple strategies that may be wont to conserve water resources. See these Athenian account ways in which to conserve water on a private ...Learn more

Asked by Audrey

Science πŸ”¬
Is underground water hot in the winter and cold in the summer?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

As a matter of fact, the temperature of underground water remains relatively consistent during the time since water table is far beneath from the ...Learn more

Asked by Jeniffer

Science πŸ”¬
How does the tilt of Earth's axis affect the number of daylight hours and the temperature of a location on earth?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

The amount of warmth energy received at any location on the world may be a direct impact of Sun angle on climate, because the angle at that daylight...Learn more

Asked by Tim

Science πŸ”¬
If the Hubble telescope can take excellent pictures of stars and galaxies forming millions of light years away, why can't it take a good picture of Pluto?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

The dwarf planet Pluto has an angular diameter of.06 to zero. eleven arc seconds only. whereas Andromeda galaxy has an angular diameter(elliptical) ...Learn more

Asked by Sarah

Science πŸ”¬
In a scale model of the Local Group of Galaxies, in which the Milky Way Galaxy was the size of a marble (about 1 cm in diameter), how far would it be from the Milky Way Galaxy to the most distant galaxies in the observable universe on this scale?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

We can begin with taking the measure of the Smooth Way System and relating that size to the extent of a marble and after that from that compute the ...Learn more

Asked by James

Science πŸ”¬
How do hydroelectric dams affect the ecosystem?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Hydropower does no longer pollute the water or the air. however, hydropower centers can have big environmental effects by using changing the surroun...Learn more

Asked by Max

Physics πŸš€
What is cancer?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Malignancy begins when quality changes make one cell or a couple of cells start to develop and duplicate excessively. This may cause a development c...Learn more

Asked by Max

Science πŸ”¬
What type of climate would be best suited for solar panel energy use?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

A clear, bright day is the best weather condition for optimal solar panel output. On a clear, non-cloudy day the panels receive the maximum amount o...Learn more

Asked by Richard

Science πŸ”¬
What would a drawing of a food chain with 4 trophic levels look like?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

This may answer your question: https://images.slideplayer.com/36/10664178/slides/slide_20.jpg

Asked by James

Science πŸ”¬
What are transitional fossils and why are they important to the fossil record?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

One of the main arguments against the theory of evolution is that idea that there are missing links between different species as they evolved. A tra...Learn more

Asked by Sarah

Biology 🌱
What is the difference between a biome and an ecosystem?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

A biome is an area of similar climate where a cluster of species is distributed throughout. At any spot you might, eventually, be able to take a sim...Learn more

Asked by Tim

Physics πŸš€
How was the galaxy formed?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

As you may know, galaxies are mainly of two kinds: spiral galaxies and elliptical galaxies (there are also irregular galaxies). Spiral galaxies f...Learn more

Asked by Ozge

Biology 🌱
What is a sprem?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Sperm is the male reproductive cell

Asked by Liam

Geography πŸ—Ί
What are the three volcanic hazards that must have been associated with the eruption that devastated Santorini?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Tsunami, earthquakes and volcanic dust.

Asked by Sarah

Physics πŸš€
How much electromagnetic energy can humans sense?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

The current consensus is that humans cannot sense magnetic fields. Birds can do it, as can bats, turtles, ants, mole rats, sharks, rays, and more. R...Learn more

Asked by Liam

Geography πŸ—Ί
How are hydrogen fuel cells made into energy?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Hydrogen is the simplest element. An atom of hydrogen consists of only one proton and one electron. It's also the most plentiful element in the univ...Learn more

Asked by Sarah

Physics πŸš€
Why are planetary orbits elliptical and why do bodies in a solar system orbit the center of mass and nit the star itself?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Planets orbits are defined by conservation laws. Johannes Kepler discovered by the observation that planets follow elliptical orbits. A few decad...Learn more

Asked by Sarah

Geography πŸ—Ί
How does ground water move underground?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Groundwater moves in pore space. The flow in a porous medium (subsurface) occurs between particles (sand, silt, gravel, etc. or a mix of these). ...Learn more

Asked by Max

Biology 🌱
Why can insects adapt to pesticides quickly?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Evolution and short reproductive cycles. Pesticides are a form of selection in the evolution of insects - not a "natural selection" but a selecti...Learn more

Asked by James

Biology 🌱
In what biome do we live in?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Humans can be found living in virtually all types of terrestrial biomes.

Asked by Sarah

Geography πŸ—Ί
If mankind is the cause of global warming, then how did the ice age end?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

So how can we say that the recent warming we have seen is caused by humans and not just this natural cycle? By knowing about these natural cycles a...Learn more

Asked by Audrey

Physics πŸš€
Do stars have hydrogen and helium or hydrogen alone on its birth?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

All stars are composed of hydrogen and helium, and depending on age and generation, they may have varying amounts of heavier elements. According ...Learn more

Asked by Liam

Biology 🌱
What is an example of an animal and their niche for the grassland savannah biome?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Wildebeests are antelopes of Savannah. They follow the rain throughout the year and migrate in large herds. They feed mainly on short grass of East ...Learn more

Asked by Audrey

Geography πŸ—Ί
What's the difference between geologic column and geologic time scale?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

A geologic column (Stratigraphic column) is a representation of where different rocks sit relative to each other. A Strat column (for short) shows c...Learn more

Asked by Jeniffer

Physics πŸš€
What are some of the limits of radiometric dating techniques?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Analytical limit: One that you can control to some extent and will affect the precision and accuracy of the dating. Natural limit: One that is ...Learn more

Asked by Sarah

Geography πŸ—Ί
How does ENSO affect the distribution of rainfall?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

ENSO has two forms: La NiΓ±a and El NiΓ±o. Both La NiΓ±a and El NiΓ±o refer to changes in temperature between the sea surface and the atmosphere in the ...Learn more

Asked by Tim

Science πŸ”¬
How does climate change affect photosynthesis?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Climate change affects plants in many different ways. - Increasing CO2 concentration can increase photosynthetic rates - Increasing temperature...Learn more

Asked by Micheal

Science πŸ”¬
Why are hydrogen, helium and lithium important and how did these elements come to be on Earth?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

The lightest elements (hydrogen, helium, deuterium, lithium) were produced in the Big Bang nucleosynthesis. According to the Big Bang theory, the te...Learn more

Asked by Sarah

Science πŸ”¬
Which are better, biofuels or fossil fuels? What are pros and cons of both?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

This is an interesting question - it depends what you're considering when you ask what is 'better'. Naturally, biofuels are better for long-term env...Learn more

Asked by Richard

Science πŸ”¬
Why are cepheid variable stars important in our study of the Milky Way?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Cepheid stars vary in their brightness (growing bright then dim) according to their mass. So, the idea is, if you know the brightness (period), you ...Learn more

Asked by Richard

Science πŸ”¬
How does carbon cycle through the biosphere?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

In summary: 1. Carbon enters the atmosphere as carbon dioxide (CO2) from respiration and combustion. 2. CO2 is absorbed by producers (such as plan...Learn more

Asked by Max

Science πŸ”¬
How does natural selection affect gene frequency?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

The whole idea behind natural selection is that characteristics which are advantageous are favoured, whilst characteristics which are disadvantageou...Learn more

Asked by Audrey

Science πŸ”¬
Where did we get our evidence about the Earth's structure?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Part of our evidence comes from direct sampling of the Earth's structural makeup. However, the deeper parts of the Earth are harder to reach, so we ...Learn more

Asked by Max

Geography πŸ—Ί
How do you interpret topographic maps?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Hi! A topographic map is a detailed and accurate illustration of man-made and natural features on the ground such as roads, railways, power transm...Learn more

Asked by Jeniffer

Geography πŸ—Ί
How does weather forecasting utilise statistics and probability?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Weather forecasting is a complex task and much relies on probability and predictions. You can read some more detail at the Met Office website, w...Learn more

Asked by James

Geography πŸ—Ί
What are the different types of sand dunes?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Subsequently, the five major types of sand dunes are Star, linear, parabolic, barchan, and reversing sand dunes. The velocity, turbulence, and direc...Learn more

Asked by James

Physics πŸš€
What is the difference between quasars, pulsars and neutron stars?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Quasar A quasar is a galactic nucleus, comprised of a black hole surrounded by a very luminous accretion disk. Quasars are very distant objects a...Learn more

Asked by Tim

Geography πŸ—Ί
How can natural disasters be predicted?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Predicting the size, location, and timing of natural hazards is virtually impossible, but now, earth scientists are able to forecast hurricanes, flo...Learn more

Asked by Liam

Chemistry βš›οΈ
Why can't color alone be used to identify most minerals?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

It is common for one mineral to be naturally found in more than one color. Different minerals may also be the same color.

Asked by Jeniffer

Physics πŸš€
What determines a star's lifespan?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

The overall lifespan of a star is determined by its mass.

Asked by Jeniffer

Biology 🌱
How does bacteria grow?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Bacteria reproduce by binary fission, which means a parent cell divides into two genetically identical daughter cells with an identical set of chrom...Learn more

Asked by Jeniffer

Science πŸ”¬
What is the chain of events that may have occurred if a meteorite collided with Earth, causing the extinction of many plants and animals?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

The last really big extinction event was at the end of the Cretaceous period, 65.6 million years ago. A giant asteroid, about 10 km in size, hit the...Learn more

Asked by Sarah

Chemistry βš›οΈ
How do natural gas compressor stations work?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Compressor stations include several key component parts, the primary being the actual compressor unit. The main parts include: Compressor Unit – ...Learn more

Asked by Jeniffer

Physics πŸš€
How do the basic galaxy types differ in shape, stellar content, and interstellar matter?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

There are many types of galaxies such as spiral, lenticular, elliptical and irregular. Elliptical galaxies form through galactic collisions. We h...Learn more

Asked by Sarah

Physics πŸš€
What caused the earth's axis to tilt? Did this cause a change in the amount of days it takes for the earth to revolve around the sun?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Earth's axis remains tilted in the same direction with reference to the background stars throughout a year (regardless of where it is in its orbit)....Learn more

Asked by Jeniffer

Geography πŸ—Ί
What natural resources are found in the coastal waters of Cameroon, Equatorial Guinea, Gabon, and the Congo?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

The country's major natural resources include petroleum, natural gas, diamonds, niobium, manganese, uranium, gold, timber, iron ore and hydropower

Asked by Richard

Geography πŸ—Ί
Why are volcanic eruptions dangerous?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Volcanoes have a series of hazards (e.g. lava flows, ash fall, pyroclastic flows, climate changes on a global scale) that relate to different danger...Learn more

Asked by Jeniffer

Biology 🌱
Why does my ecological footprint change depending which country I live in?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Your ecological footprint is dependent on your culture, the technology available to you, and the laws and limits related to environmental regulation...Learn more

Asked by Richard

Biology 🌱
How is species diversity measured?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Simpson's Diversity Index is a measure of diversity. In ecology, it is often used to quantify the biodiversity of a habitat. It takes into account t...Learn more

Asked by Sarah

Geography πŸ—Ί
What are Mexico's three major mountain ranges?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Mexico consists of an entire mountain system known as the Sierra Madre. The three ranges it consists of are called Sierra Madre Occidental, Sierra M...Learn more

Asked by Audrey

Physics πŸš€
What is the parallax formula and how is it used to calculate the distance between two stars?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Astronomers estimate the distance of nearby objects in space by using a method called stellar parallax, or trigonometric parallax. Simply put, they ...Learn more

Asked by Max

Geography πŸ—Ί
Why don't hurricanes form in the Earth's polar regions?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

The simplest answer is that the polar regions are much cooler. Hurricanes form in warm waters, which creates areas of high and low pressure, resulti...Learn more

Asked by Liam

Chemistry βš›οΈ
What are the advantages and disadvantages of nuclear reactions?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Advantages: Produces no polluting gases. Does not contribute to global warming. Very low fuel costs. Low fuel quantity reduces mining and ...Learn more

Asked by Liam

Physics πŸš€
What is earth's core made of? How does it compare to other planets?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

The Crust, Mantle, Core. Earth's crust is made up of several elements: oxygen, 46.6 percent by weight; silicon, 27.7 percent; aluminum, 8.1 perc...Learn more

Asked by Rois

Chemistry βš›οΈ
15.3g of an unknown substance was found to contain 0.15 moles. What is the relative formula mass of the substance?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

relative formula mass = mass Γ· number of moles Therefore: formula mass = 15.3 Γ· 0.15 = 102

Asked by Jeniffer

Physics πŸš€
What does the large scale structure of the universe look like? Explain why we think this structure reflects the density patterns of the early universe?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Essentially astronomers think that on the largest scale the structure of the universe resembles a foam (weird, eh?) It seems there are filaments and...Learn more

Asked by James

Geography πŸ—Ί
What can be said about an igneous rock with larger crystals compared to one with smaller crystals?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

The size of crystals in an igneous rock is an important indicator of the conditions where the rock formed. An igneous rock with large crystals proba...Learn more

Asked by Tim

Geography πŸ—Ί
How does tectonic plate movement change the earth?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Movements of tectonic plates created the surface of the earth: it was the surge of mantle material like slow cooking soup that separated out the lig...Learn more

Asked by Liam

Geography πŸ—Ί
How do fossils help us determine the age of rock layers?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Scientists combine several well-tested techniques to find out the ages of fossils. The most important are Relative Dating, in which fossils and laye...Learn more

Asked by James

Physics πŸš€
Is the angle of the axis that the earth rotates on created by or affected by the sun?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Although the angle of the Earth's axis of rotation is not created by the sun, it is affected by the sun's gravity causing it to process.

Asked by Micheal

Geography πŸ—Ί
Along a front, which type of air is always forced upward?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Warm No matter the type of front the warm air is always over the cold air, due to density. A cold front is the leading edge of a cold air mass an...Learn more

Asked by Tim

Economics πŸ“ˆ
What is the role and importance of agriculture in national, regional, and international economies?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Globally, agriculture makes up a very small portion of GDP and provides work for roughly 1/5th of the world's population. The role of agriculture ra...Learn more

Asked by Sarah

Science πŸ”¬
What are the similarities and differences between the carbon cycle and nitrogen cycle?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Similarities: Both of these are biogeochemical cycles, meaning that the chemicals spend a portion of the cycle in living things (hence the bio) ...Learn more

Asked by Tim

Biology 🌱
What role did cyanobacteria play in the transformation of Earth's early atmosphere?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Cyanobacteria probably formed a partnership with chloroplast bacteria around 2 billion years ago - the chloroplasts were engulfed by the cyanobacter...Learn more

Asked by Max

Physics πŸš€
How fast is our galaxy moving through space? Is the movement due to the expansion of the universe?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Our Milky Way galaxy is huge, massive, and most importantly, is in motion. All the stars, planets, gas clouds, dust grains, black holes, dark matter...Learn more

Asked by Jeniffer

Chemistry βš›οΈ
Do living organisms defy the second law of thermodynamics?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

No known phenomena violate the second law of thermodynamics. The second law of thermodynamics postulates that the entropy of a closed system will...Learn more

Asked by Max

Biology 🌱
Which biome has the greatest species diversity? Least diversity?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Tropical forests are widely considered to have the greatest species diversity of the terrestrial biomes and the tundra biome has the least.

Asked by Liam

Chemistry βš›οΈ
What are some examples of carbon sources and carbon sinks?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Carbon sources include emissions from burning fossil fuels, forest fires, and respiration. Carbon sinks include the oceans, plants, and soil.

Asked by James

Physics πŸš€
How was earth created by way of a scientific explanation?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

It was not "created" in a religious sense by some supernatural being. Earth and the entire solar system formed as part of nebular gases coming toget...Learn more

Asked by Silvia

Biology 🌱
What is chromatography?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

A technique for the separation of a mixture by passing it in solution or suspension through a medium in which the components move at different rates...Learn more

Asked by Audrey

Physics πŸš€
How does the solar system affect the Earth and Earth it?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

According to the Big Bang Theory, the shape, orbit and chemical makeup of the Earth is affected and affects every other planet in the solar system s...Learn more

Asked by Sarah

Physics πŸš€
What started the Big Bang? What was there before it? What is some evidence for it? Why do some people not agree?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

This is a very heavy and complicated question to answer but I'll try. In simple terms, it is believed the universe exploded randomly into life [...Learn more

Asked by Knight

Chemistry βš›οΈ
State the solubility of CaCO3?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Calcium carbonate has a very low solubility in pure water (15 mg/L at 25Β°C), but in rainwater saturated with carbon dioxide, its solubility increase...Learn more

Asked by Sarah

Physics πŸš€
What are the similarities and differences between pulsars, quasars, white dwarfs, neutron stars and black holes?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Pulsars, white dwarfs, neutron star and black holes are the remains of dead stars, quasars are powered by black holes. When a star less than abou...Learn more

Asked by James

Physics πŸš€
What factors are responsible for the general direction in which low pressure centers move across the contiguous United States?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Prevailing winds. On the globe, there are circulation cells that are set in motion by solar heat. The main cell is called the Hadley Cell (after...Learn more

Asked by Micheal

Physics πŸš€
What are the different layers of the atmosphere?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Troposphere Living at the surface of the Earth, we are usually only aware of the events happening in the lowest layer, the troposphere, where all w...Learn more

Asked by Liam

Physics πŸš€
How are the four fundamental forces related?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

According to the present understanding, there are four fundamental interactions or forces: gravitation, electromagnetism, the weak interaction, and ...Learn more

Asked by Jeniffer

Biology 🌱
Is a pyramid of biomass the same as a food pyramid?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

You can see an example of what a food pyramid traditionally looks like below. Whereas a biomass pyramid or an energy pyramid refers to the amount of...Learn more

Asked by Richard

Science πŸ”¬
What are the parts of the tundra ecosystems?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

The details will depend on which tundra ecosystem one is referring to, but tundra ecosystems are characterized by cold temperatures, little precipit...Learn more

Asked by Liam

Science πŸ”¬
How do greenhouse gases trap heat?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Test

Asked by Max

General πŸ›
How do I make the most of summer as a student?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

There are two ways you can approach summer/August. Summer is the time to get in the zone. Everybody is sleeping. Everybody is on vacation. August i...Learn more

Asked by Sam

Physics πŸš€
In gcse higher triple science terms, explain how generators induce a current?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Generators work using a process called electromagnetic induction. One way of generating a current is to move a magnet into or out of a coil. Instead...Learn more

Asked by Melina

Maths πŸ’―
210 increased by 13%?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

It is 27.3 πŸ‘

Asked by Charlie

Science πŸ”¬
Explain how friction is produced in response to an applied force?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

A force is needed to start an object moving and to stop it once it is moving. A force can make an object speed up or slow down. Friction is a force ...Learn more

Asked by Alex

Biology 🌱
Where in a plant are stem cells found?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

They are located in the meristems of plants!

Asked by Ben

English πŸ‡¬πŸ‡§
It’s 16:45 and I have my GCSE English literature paper 1 tomorrow any tips??

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Good luck! Teach something to a younger sibling. You’ll definitely remember it. Also, have some almonds. They’re good brain food πŸ™‚

Asked by Josh

Maths πŸ’―
How do u translate a shape by the vector?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

We always write the horizontal displacement at the top of the vector and the vertical displacement at the bottom. A move downwards or to the left i...Learn more

Asked by Chitra

Chemistry βš›οΈ
Why the electronegativity of Ga is higher than that of Al?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

electronegativity of gallium is higher than that of aluminium because Insufficient shielding by the 3d subshell.

Asked by Laibah

Science πŸ”¬
What are food chains?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

A food chain shows what eats what. It always starts with a producer or what’s being eaten. Grass is a good example of this. It then follows on in ...Learn more

Asked by Mannat

Accounting πŸ“’
What is accounting?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

It’s the process of measuring, recording and reporting financial transactions for individuals or businesses. That just means it’s a way of underst...Learn more

Asked by Elliot

Maths πŸ’―
What is a sequence?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

A sequence, in maths, is a string of objects, like numbers, that follow a particular pattern. Eg 1, 2, 3, 4, 5

Asked by Max

Accounting πŸ“’
How do u calculate the area?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

I think you were missing a word there, Max! If you mean a triangle, it’s: Base x height / 2 Hope that helps πŸ˜ƒ

Asked by Piero

Business πŸ‘”
What is meant by Niche Market? 30 own Words?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

Concentrating all marketing efforts on a small but specific and well defined segment of the population. As a strategy, niche marketing is aimed at...Learn more

Asked by Mannat

Accounting πŸ“’
What is cash flow statement?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

It’s a representation of all the money going in and out of a business. Here’s the official fancy definition πŸ™‚ In financial accounting, a cash fl...Learn more

Asked by Chitra

Chemistry βš›οΈ
What is secondary kinetic isotope effect?

James Vardini

I have recently graduated from Imperial College London with an Upper Second Class degree in Biochemistry

A secondary kinetic isotope effect is observed when no bond to the isotopically substituted atom in the reactant is broken or formed in the rate-det...Learn more