Multiple Choice
A newly formed planet or large asteroid becomes molten due to
A) the last infalling objects.
B) decay of radioactive element isotopes.
C) the last infalling objects and decay of radioactive element isotopes.
D) none of the other choices as newly formed planets remain solid inside.
Correct Answer:
Verified
Correct Answer:
Verified
Q76: The _ planets have larger radii than
Q77: Solar wind: the flow of ionized hydrogen
Q78: Cold dust disks are _ disks around
Q79: On a photograph of the Moon, the
Q80: Massive planets create _ Doppler shifts of
Q82: 51 Pegasi is important because<br>A)it is a
Q83: If the terrestrial planets were formed by
Q84: Compared to the terrestrial planets, Jovian planets<br>A)have
Q85: Which planetary fact(s) is(are) explained by the
Q86: The _ hypothesis of the formation of