Multiple Choice
The inner planets are terrestrial because _________________.
A) they are made of volatile materials
B) they are made of refractory materials
C) as our Solar System's proto-Sun formed, the inner part of our protoplanetary disk got hotter causing evaporation
D) Both b and c are correct.
E) Both a and c are correct.
Correct Answer:

Verified
Correct Answer:
Verified
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