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.

Question

Quizplus · Accepted Answer

The inner planets are terrestrial because they are made of refractory materials, which can withstand high temperatures, and the inner part of the protoplanetary disk got hotter, causing volatile materials to evaporate.

The Inner Planets Are Terrestrial Because _________________