Which Statement Is Believed to Be the CORRECT Explanation for the Origin

question 285

Multiple Choice

Which statement is believed to be the CORRECT explanation for the origin of the Moon?

• A) The Moon was formed elsewhere in the solar system (which is why its composition differs from that of Earth) and was later captured by Earth's gravity.
• B) Shortly after its formation, Earth was spinning so fast in its molten state that a large piece of material was thrown off, and this chunk coalesced to form the Moon-leaving the Pacific Ocean basin in the place where it was thrown off.
• C) Earth and the Moon were formed separately at the same time, while in orbit around their common center of mass, by the accretion of planetesimals.
• D) Earth was struck by a large planetesimal that caused material to be ejected. This material coalesced to form the Moon.

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