Multiple Choice
The average density of which of these planetary groups is close to that of water (1000 kg/m3) ?
A) Mercury and Venus because they are close to the Sun
B) terrestrial planets because they are of relatively low mass and have been compressed very little by gravitational forces
C) asteroids because they are very small objects
D) large, outer planets because of their composition-hydrogen and helium
Correct Answer:
Verified
Correct Answer:
Verified
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