Very early in Earth's history (during the Hadean Eon),the Earth ________.
A)was very cold,so no igneous rocks had yet formed
B)was so hot that it was,at times,completely molten
C)was entirely composed of loose material called regolith
D)had a similar diversity in rock types as seen today

Question

Quizplus · Accepted Answer

During the Hadean Eon, the Earth was bombarded by asteroids and had a lot of heat energy that led to the complete melting of the Earth's surface. This is evidenced by the lack of remaining rocks from this period and the presence of ancient zircon crystals with ages up to 4.4 billion years old, which could only have formed in a completely molten Earth.

Very Early in Earth's History (During the Hadean Eon),the Earth