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Answered

what is one reason why rock layers are not horizontal?


A.they was formed at an angle

B.the area was once covered by water

C.A forced pushed the rock layers after they were forced


D.they were forced veritcally

Verified Answer :

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C.A forced pushed the rock layers after they were forced

Answer;

C.A forced pushed the rock layers after they were formed

Explanation;

Most of the rocks exposed at the surface of Earth are sedimentary--formed from particles of older rocks that have been broken apart by water or wind.

Layered rocks form when particles settle from water or air. Steno's Law of Original Horizontality states that most sediments, when originally formed, were laid down horizontally.

However, many layered rocks are no longer horizontal. Because of the Law of Original Horizontality, we know that sedimentary rocks that are not horizontal either were formed in special ways or, more often, were moved from their horizontal position by later events, such as tilting during episodes of mountain building.