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- SOLAR SYSTEM
- These questions deal with the SOLAR SYSTEM in which we live.
- Q
- How many planets are in our solar system?
- A
- Nine
- Q
- What is the definition of a light-year?
- A
- The distance that light travels in a vacuum for a period of
- one year, approximately 5.878 trillion miles.
- Q
- How is the distance in miles between the moon and the earth?
- A
- 252,950 miles at its apogee to 221,600 at its perigee
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