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What are the causes of desertification?(Note - We are solely looking at the causes and not the effects or solutions of desertification)So break the question down: Define desertification -...

OK. The Arabic dual, part 1!
The Arabic dual is not something to fear! It is a beautiful construction that allows you to refer to two nouns - not just one or more than one as we are restricted in Eng...

Make sure integral is in terms of sines and cosines onlyFactor out sine of numerator and make fraction in terms of cosineSubstitution y=cos(x)Fractions decompositionAnother 2 substitutionsSolve

The main differences between these two types of volcano are based on how they look and where they are found. Composite cone volcanoes (also known as stratovolcanoes) are mainly found at subduction zones (...

A simultaneous equation is calculated to find the pair of co-ordinates where two straight lines cross on a graph, so the question you've probably been asked is to 'solve' a pair of linear equations. This ...