Multiple Choice
It took so long for true crust to form on Earth because
A) Earth had to complete the differentiation process before rocks could form.
B) temperatures were so high that any crust that did form was quickly remelted.
C) there was no atmosphere on the planet and thus no air to cool the crust.
D) heat from the creation of the magnetic field kept the surface molten.
Correct Answer:

Verified
Correct Answer:
Verified
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