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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. At the time this book was written, how many Mars Observers had been flown successfully?
(a) None.
(b) One.
(c) Three.
(d) Five.

2. What was the name of the mission that sent the first probes to Venus?
(a) Venera.
(b) Oracle.
(c) Sojourner.
(d) Lyka.

3. What process would be critical to terraforming Mars?
(a) The greenhouse cycle.
(b) Oxidation.
(c) Ozone catalyzing.
(d) The Turing effect.

4. How far out does the solar corona die out?
(a) 1200 AU.
(b) 70 AU.
(c) 550 AU.
(d) 5 AU.

5. Sagan suggests that ancient people did not think of the moon as which of the following?
(a) As a real object.
(b) As a place.
(c) As moving.
(d) As having an opposite side.

Short Answer Questions

1. What is the primary distinguishing feature that SETI looks for to identify a communication from an intelligent source?

2. When did a "disrupted" comet famously fall into Jupiter?

3. What does Sagan believe about weapons of mass destruction?

4. What does Sagan say the rings of Saturn composed of?

5. When did NASA's SETI program go online?

Short Essay Questions

1. What would the process of "terraforming" on Mars be like?

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

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

4. What does Sagan believe black holes have to offer?

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

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

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

8. What is unusual about the surface of Venus?

9. How is Venus different from Earth?

10. Why does Sagan believe it is unlikely that a manned mission to Mars will be carried out in the near future?

(see the answer keys)

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