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Questions for Discussion: The Origin of the Moon
- Explain the theory of how and when the Moon formed.
- Why was the anorthosite rock brought back from the Moon by Apollo 15 called the "genesis" rock? Explain in detail.
- The oldest rock on Earth is 3.9 billion years old, and it is a metamorphic rock. Why do we believe Earth is actually at least 4.5 billion years old?
- In what ways does the Moon influence characteristics of Earth?
- What is meant by an Earth-moon system?