Multiple Choice
So far, our study of the other bodies in our solar system is based on:
A) Earth-based telescopic observations only.
B) telescopic observations from Earth and from spacecraft only.
C) telescopic observations from Earth and spacecraft plus geologic samples brought back from the Moon.
D) telescopic observations from Earth and spacecraft plus information from crewed landings on about half the planets.
Correct Answer:

Verified
Correct Answer:
Verified
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