Biology, 29.05.2020 02:08 lailahussain99

4. How does the author present the Grand Canyon and the Carlsbad Caverns?

A as effects of landslides

B. as geological mysteries

C. as negative effects of erosion

D. as positive effects of erosion

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4. How does the author present the Grand Canyon and the Carlsbad Caverns?

A as effects o...

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