Official 39 Lec 1
Question 2 of 6
What point does the professor make about the minerals present during Earth's formation?

A.

They were comparatively few of them.

B.

They were more complex than minerals formed on other planets.

C.

Most were not affected by temperature and pressure changes on early Earth.

D.

Some of them are no longer being formed naturally on Earth.

正确答案:A

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