Why are the fold mountains called so?

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Question
Why are the fold mountains called so?
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Answer:
Fold mountains are mountains that form mainly by the effects of folding on layers within the upper part of the Earth’s crust.
Fold mountains are mountains that form mainly by the effects of folding on layers within the upper part of the Earth’s crust. … The term orogenic has derived from a Greek word meaning mountain building. These forces act at tangent to the surface of the earth and are primarily a result of plate tectonics.