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Create a revision timetable. It doesn't have to be to the hour, but make sure to write down all the topics you need to cover. For example, during my A-levels I'd do one mini topic every 2 days. - Start early...

An enzyme is a catalyst / which speeds up a reaction. It's a protein and/or it's specific (due to its active site)

There are many reasons behind Stalin's rise to power. After the death of Vladimir Lenin in 1924, there was a power vacuum created with in the Communist Party. Many people believed that the natural heir to th...

First of all, you should find the angle between the vector and the normal of the plane using the rule cosX= a . b /mod a mod b . The normal can be found easily from the cartesian equation of the plane. For e...

When you write an essay, you only need to use quotations which are necessary - there is no point in filling out an essay with quotations that don't do anything. Everything within the essay needs to be releva...