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bulgar [2K]
3 years ago
12

How and when were the Appalachians formed

Biology
1 answer:
shutvik [7]3 years ago
5 0

Answer:

The ocean con tinued to shrink until, about 270 million years ago, the continents that were ances tral to North America and Africa collided. Huge masses of rocks were pushed west- ward along the margin of North America and piled up to form the mountains that we now know as the Appalachians.

Explanation:

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