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(A typical 10 mark question) The Earth's temperature has fluctuated over the last 10,000 years, causing the climate to change. This change is caused by many long and short term factors. As temperatures ri...

• First we'll figure out what the numbers in the co-ordinates mean. On the point (7,12) x= 7 and y=12. - The equation of the line is in the form of y=mx + c so for the point to be on the line, the y v...

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...

x²+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 ne...

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 ha...