I think that it is B wave patterns good luck!!!!
I would say that probably classifying natural disasters and their impact on man would most likely be considered by William Hughes as true geography as rather than just describing earth's features it would show the impact of earth's processes on man.
Be more specific, in order to answer this question.
<u>B - A theory that stated if Vietnam fell to communism the rest of the region would soon follow.</u>
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People were afraid that once Vietnam fell into communism that surrounded places would soon follow. Vietnam would be the first domino to fall and hit the rest of the region causes more communism.
Answer: Most of the world's volcanoes are found around the edges of tectonic plates, both on land and in the oceans. On land, volcanoes form when one tectonic plate moves under another. Usually a thin, heavy oceanic plate subducts, or moves under, a thicker continental plate.
