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  • Located along the Martian equator, Valles Marineris is a canyon much bigger than the Grand Canyon on Earth.
Question 1:
Located along the Martian equator, Valles Marineris is a canyon much bigger than the Grand Canyon on Earth. How long is it?
A. 4,000 km long.
B. 750 km long.
C. Just under 500 km long.
D. 2,500 km long.

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