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Land covered in concrete and buildings alters the albedo of a pace because dark colours will absorb, rather than reflect incoming sunlight. This creates 'urban heat islands' where temperatures are higher ...

When writing an essay in an exam, try to ensure that your answer is focused, well structured and supported by evidence. To start with, it is a good idea to create a brief plan for your essay. This should ...

Often, the compound angle formulae can seem quite offputting, especially since exam pressures can mean the random "R" at the front of an angle addition formulae appears confusing. However, findi...