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The low escape speed of the moon explains why it has no:

ASurface
BAtmosphere
CCraters
DMountains
Answer & Solution
Correct answer: B. Atmosphere
1. Gas molecules on the moon move faster than its escape speed. 2. They therefore leave rather than being held. 3. So the moon has no atmosphere. _Source: syllabus Physics Part I, Chapter 8, Gravitation._
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