Chapter 1 Quiz

1. Which element is more abundant in the Universe?
2. Approximately how many stars are there in the Milky Way?
3. Approximately how many galaxies are there in the Universe?
4. What is a comet?
5. What is an asteroid?
6. What is a planet?
7. Which star does the Earth axis point to in the Northern hemisphere?
8. What is the Course ID in MasteringAstronomy?
9. What is a black hole?
10. What is the value of the speed of light?