The Most Popular Theory for the Origin of the Moon

question 17

Multiple Choice

The most popular theory for the origin of the Moon today is___________ .

• A) the Moon was formed when Mars and a comparable size planet collided, and the Moon was ejected toward Earth and captured
• B) the early Earth and a planet the size of Mars collided, and the ejected material coalesced to form Earth's Moon
• C) the Moon and Earth coalesced from an eddy in the solar nebular, forming a binary planet system
• D) Earth captured a small planet, which is our moon

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