A. of the composition of lunar soil
B. the surface gravity of the Moon is less
C. the Moon has no atmosphere
D. the Moon has no active tectonic or volcanic activity
B
Dẫn chứng: The surface gravity of the Moon is about one-sixth that of the Earth’s. Therefore, a man weighing 82 kilograms on Earth would only weigh 14 kilograms on the Moon.
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