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1.  How is it thought that the asteroids originated?

2.  Where are the asteroids located in the solar system?

3.  Of what are comets composed?

4.  What causes a comet to be visible?

5.  In what respect are comets like planets?

6.  Of what are the tails of comets composed?

7.  What happens when a comet breaks up, leaving debris that eventually enters Earth's atmosphere?

8.  Answer BOTH of these questions in the space below:

A)  What is the name of the most famous comet?

B)  How often can it be seen from Earth?

9.  Which recent comet gave astronomers their most up-to-date comet information?

10.  What causes a meteor to be a "fireball"?

11.  What happens to most meteors?

12.  What are the main kinds of meteorites?

13.  Answer BOTH of these questions in the space below:

A)  What are tektites?

B)  Where did they probably originate?