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A waterfall forms in the upper course of a river. The water here flows over hard and soft rock. The soft rock is eroded more quickly than the hard rock. The river undercuts the hard rock leaving an ove...

Define demand as the willingness and ability of a consumer to pay a certain price for a good or service at a specific period in time. 

Explain the meaning of law of demand, where, ceteris...

To begin with, an introduction must clearly set out what is to be explained in the essay. Key words must be defined. The first key words is "localisation." After defining the key words, the s...

So, Pythgoras Theorem mostly deals with right-angled triangles, ie a triangle with one 90 degree angle.

The slanted side is called the hypotenuse and let us denote it as c the bottom is called the ...

The imperfect tense is a PAST tense and, (in French) is used to talk about three past things:

- To desc...