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Please describe how, and explain why the texture of an igneous intrusion would change from the outer edge to the centre.

When intruding, hot magma contacts the cool country rock this will cause the outer edge will quickly cool and harden, therefore there will not be much time for crystals to form leaving a very fine crystal te...
SA
Answered by Sophia A. • Geology tutor
2246 Views

How do you solve a quadratic equation? I always forget how to do that!

x 2 +4x+3=0 The first step is to factorise. To do this you need to find a pair of factors of 3 that add together to make 4. I recommend listing the factors of 3 to start with. Don't forget the negatives! 1 a...
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Answered by Hannah D. • Maths tutor
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Describe how cell division by meiosis is different from cell division by mitosis.

Meiosis produces four cells through two cell divisions, whereas mitosis produces two cells through one cell division 2. Meiosis produces haploid cells, whereas mitosis produces diploid cells 3. Meiosis halve...
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Answered by Eyad A. • Biology tutor
8118 Views

Solve: x^8-17x^4+16

You should treat the question as you would a normal quadratic and complete the square. First you should look at the factors of 16 and see which pair would result in the -17x; you can see that it would be -1 ...
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Answered by Jessica G. • Maths tutor
12796 Views

How have physical processes created the coastal landforms that exist today?

When looking at physical processes it is important to explore it in two different ways: ' Hard coastlines ': these are areas of the coastline which contain hard rock, and therefore are tougher to break down,...
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Answered by Luke R. • Geography tutor
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