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How do I prepare for an Oxbridge interview?

The best place to start is to look back at your personal statement. What particular topics did you pick out and what are the key books you referred to? Start by brushing up on these topics and revising these...
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Explain what the term biodiversity means, and why it is important.

Biodiversity can be defined broadly as the variety of life of Earth. The Convention on Biological Diversity includes variation between species (species diversity), within a species (genetic diversity) and be...
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Answered by Hannah W. • Geography tutor
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How does Tennyson create a sense of place in 'Mariana'?

There are lots of things to look for in this poem that can help you answer this question. The most obvious is the language he uses: the very first stanza is groaning with adjectives signifying age, decay and...
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Answered by Samuel H. • English tutor
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When a stack is implemented using a 1-D array, adding a valid item can cause an execution error. Explain why an execution error can occur in this situation.

The key thing to remember here is that an array is a fixed size data structure so any attempt to exceed this size will cause an error during execution e.g. trying to add an item to an already full stack will...
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Answered by Thomas T. • Computing tutor
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Below is a question from the Edexcel Maths Core 1 textbook, Solve the equation x^2 + 8x + 10 = 0 using completing the square.

Before we get to solving the equation, let’s first review the method completing the square. Completing the square is simply to convert an equation into the form of (x±a )^2, so it is possible to solve for x....
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Answered by Lily Z. • Maths tutor
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