Answer:
The answer to this question is D.
Explanation:
The Appalachians are among the oldest mountains on Earth, born of powerful upheavals within the terrestrial crust and sculpted by the ceaseless action of water upon the surface.
Answer:
Winnowing
Explanation:
When you winnow grain, you separate the chaff from the edible grain. Flailing: Flailing is a process of threshing the grain with a wooden bar. Treading: Treading is a process of threshing the grain by stepping on it.
Answer:
Non structural
Explanation:
Cause the cyclone is thole ine mostly dangerous