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What is albedo and why is it important in climate change?

Albedo is the reflectivity of a surface. A surface that has a high albedo reflects a lot of solar radiation from the sun back into the atmosphere, whilst a surface that has a low albedo reflects little solar...
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Answered by Faith P. • Geography tutor
51227 Views

How do I obtain the most marks in questions which require me to make a comparison? I.e. "Which was the bigger threat to European peace in the 1930s: • the re-militarisation of the Rhineland 1936 • the Nazi-Soviet Pact 1939? [10 Marks]

10-mark questions give you the best opportunity to 1) recall your knowledge of historical cause and continuity in detail, whilst 2) demonstrating your ability to conduct a balanced argument, and 3) to reach ...
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Answered by Joshua L. • History tutor
4872 Views

I want to study Modern Languages: what do I put in my personal statement?

There is no set model for a Modern Languages personal statement; it varies depending on your interests, the content of the degree courses and whether you're starting a new language or not. Of course, however...
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9245 Views

Explain Charles Darwin's Theory of Evolution

Populations naturally vary . (Think of how people in your class vary in height, weight and other features) This variation is brought about by inheritance of genetic material from parents. In organisms that r...
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Answered by Lewis C. • Biology tutor
5618 Views

How are specialised cells different to normal body cells?

Different parts of the body have very different functions, so it is important that the cells in these different parts have adapted in order to help the functioning to be more efficient. For example, red bloo...
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Answered by Sherrie J. • Biology tutor
10693 Views