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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 17, Routine Interplanetary Violence, Chapter 18, The Marsh of Camarina.

Multiple Choice Questions

1. At the time this book was written, about how many asteroids were known to have paths that take them close to the Earth?
(a) 200.
(b) 500.
(c) 1000.
(d) 2000.

2. What type of Mars mission did President Reagan turn down?
(a) A joint mission with the Soviets.
(b) A one-way colonization mission.
(c) A robotic colony-building mission.
(d) A manned orbital mission.

3. Which of the following is one of the moons of Mars?
(a) Orpheus.
(b) Gilgamesh.
(c) Hecuba.
(d) Phobos.

4. At the time of the writing of this book, what is the farthest planet that humans had reached through the use of exploratory probes?
(a) Saturn.
(b) Pluto.
(c) Uranus.
(d) Neptune.

5. In Chapter 5 Sagan asks the reader to imagine that they are which of the following?
(a) An ancient person.
(b) An ant.
(c) An alien.
(d) A time traveler.

Short Answer Questions

1. What major component of the Voyager craft was threatened in Sagan's plan to take a distant picture of Earth?

2. According to Sagan, how profitable is it for a nation to invest in space exploration?

3. As of 1990, how many planets did the Voyager craft explore?

4. Titan has what distinction among the moons of the planet it orbits?

5. What does Neptune posses at its core that Uranus apparently lacks?

(see the answer key)

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