The Fission Theory and The Coaccretion Theory The Coaccretion Theory and The Capture Theory The Fission Theory and the Giant Impact Theory The Capture Theory and the Giant Impact Theory
I gave my students this multiple choice question: Which two theories of Moon formation propose that much or all of the material comprising the Moon came from Earth?

Only one answer is correct among these 4 choices:
- The Fission Theory and The Coaccretion Theory
- The Coaccretion Theory and The Capture Theory
- The Fission Theory and the Giant Impact Theory
- The Capture Theory and the Giant Impact Theory

Could you tell me which one is correct?

The Fission Theory and the Giant Impact Theory