Multiple Choice
Which of the following best describes what we mean by a habitable world?
A) a planet or moon that lies within its star's habitable zone
B) a planet or moon on which humans could survive if we happened to go there
C) a planet or moon that could support life, if any life happened to be on it
D) a planet or moon with life
Correct Answer:

Verified
Correct Answer:
Verified
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