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Home Q & A Board Science-Related Homework Help Physics
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symbo symbo
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7 years ago
The Rocky Mountains of North America were formed by
A)   an ancient, mid-oceanic volcanic ridge now uplifted to become dry land.
B)   folding of the Earth's crust where two crustal plates collided along a subduction zone.
C)   asteroid impacts during the first billion years of the Earth's history.
D)   shrinking and folding of the Earth's crust as the Earth cooled and contracted.
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
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hyponoticahyponotica
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symbo Author
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#2
6 years ago
Thanks for answering, I'll share this with my classmates too
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