How Does the Large-Impact Hypothesis Explain Why the Moon Is

question 26

Multiple Choice

How does the large-impact hypothesis explain why the Moon is poor in heavy elements like iron?

• A) The collision occurred too close to the Sun for heavy elements to exist.
• B) The impact occurred after Earth had differentiated heavy elements to its center.
• C) The collision blew away most of the heavy elements into space.
• D) Most of the heavy elements were vaporized in the collision.

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