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What is evolution and why does it happen?

Evolution is a constant process that allows life forms to adapt to a changing environment. How does the environment change, though? Well, there are several sources of variation in every ecosystem. Variation ...
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Answered by Mathilda B. • Biology tutor
3891 Views

If a country wishes to depreciate their own currency, how could they do so in terms of monetary policy? List three possible effects depreciating their currency will have on the economy.

This is a question relating to international economics. In order to depreciate the currency, the country would have to use an expansionary monetary policy, as this would increase the supply of their own curr...
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Answered by Silje I. • Economics tutor
3944 Views

What does it take to make a 7 in HL Math?

A question that haunts every IB HL Math student day and night. Most students beleive that if they solve all past exams and practice book problems they should easily make a seven. That is absolutely not true....
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Answered by Youssef M. • Maths tutor
16823 Views

X=4a+3b, If a is a two digit cube number and b is a two digit square number then what is the lowest possible value for X?

In order to find the lowest value for X we first need to find the lowest possible value for a and b. Let us start off with a: If a is the lowest possible cube number we can start by checking the first couple...
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Answered by Silje I. • Maths tutor
4876 Views

How do I write about the background of a source?

Historical sources are an essential part of studying the past. Though can sometimes be confusing, there are lots of easy ways on how to break them down.The background of a source is essential to understand i...
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Answered by Ellen L. • History tutor
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