Q. Why do Fold mountains have enormous thickness of sedimentary rocks?
A) Due to accumulation of sediments in a geosyncline
B) Due to deposition of sediments in a valley for milions of years
C) The sediments were folded into recumbent and nappe
D) The plains were folded into mountains
✔ Correct Answer: Due to accumulation of sediments in a geosyncline
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