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This test consists of 5 multiple choice questions, 5 short answer questions, and 10 short essay questions.

Multiple Choice Questions

1. It is believed that some of Saturn's rings may eventually form into what?
(a) Asteroids.
(b) Moons.
(c) Meteors.
(d) Comets.

2. What is the main component of the atmosphere of Venus?
(a) Hydrogen.
(b) Sulfuric acid.
(c) Phosphate.
(d) Quicklime gas.

3. What is the shape of the galaxy closest to the Milky Way?
(a) Cluster.
(b) Spiral.
(c) Disc.
(d) Globular.

4. What is the farthest orbital location that humans have ventured to since the last time men went to the moon?
(a) Low Earth orbit.
(b) High Earth orbit.
(c) Geosynchronous orbit.
(d) Parking orbit.

5. Sagan estimates that intelligent life might arise on average in one out of how many stars?
(a) One trillion.
(b) Ten thousand.
(c) One billion.
(d) One million.

Short Answer Questions

1. Sagan cautions that the beliefs he endorses could lead to an overabundance of what?

2. What is an astronomical unit?

3. How old are the terrain features generated by Venus' volcanoes?

4. According to Sagan, what was the major advantage of the attitude of the government towards the Apollo project?

5. Sagan suggests that ancient people did not think of the moon as which of the following?

Short Essay Questions

1. What resources does Sagan believe that carbon asteroids have that make them suitable for human habitation?

2. What is unusual about the surface of Venus?

3. What does Sagan believe would be necessary for the safety of the human race to be secured?

4. What is unusual about the ring systems of the planets in our solar system?

5. What location in the solar system either have or are believed to have once had volcanoes?

6. What promising signs does Mars have for being host to life?

7. How is Venus similar to Earth?

8. What is the purpose of SETI and how does it operate?

9. What profit motivations exist in a manned mission to Mars?

10. What does Sagan want to see on Mars?

(see the answer keys)

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