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Understanding Moon Rocks Quiz

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1. What is the primary compositing material of the moon rocks brought back by the Apollo missions?

2. Which Apollo mission returned the first samples of moon rocks to Earth?

3. What is the lunar highland rock, found on the moon, composed mainly of?

4. What process on the moon formed the lunar maria?

5. Approximately how old are the majority of moon rocks estimated to be?

6. What significant element is notably missing in moon rocks compared to rocks on Earth?

7. How many moon rocks did the Apollo missions bring back to Earth?

8. Which class of moon rock includes basalts that are rich in titanium?

9. What type of moon rock has a glassy groundmass, filled with small cavities or vesicles?

10. What is the primary distinction between lunar highland rocks and lunar mare rocks?