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3 years ago

8

The Grand Canyon is approximately 29 kilometers long. Mariner Valley is a canyon on Mars that is approximately 212 kilometers lo

ng. About
longer is Mariner Valley than the Grand Canyon?
2
O 2^3
O 2^21
O 2^108

1 answer:

lesantik [10]3 years ago

8 0

I’m not sure if I’m correct but I think it is 2^21

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