The study of geography is important because it helps you learn about your surrounding area. Depending on where you live it might be ideal to know where there are hills and high elevations in case of extreme flooding. In that case you could easily get to some safety if you are on the road. If you hadn't know then you would be in a major predicament.
um...wow...this is kind of a hard one so.............
I think the answer is A. by plants and animals as a source of water.
My second answer/guess...IF i'm rough would be C. by humans for drinking and bathing.
He claimed that they were one large supercontinent called Pangaea. His evidence for his claim was that the general shapes of the separate continents and how they can fit together if you arrange them. He noticed patterns in the mountain ranges; when all the continents are together the ranges line up with one another.
The answer is Cyclical unemployment.