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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. How likely does Sagan think it is that the records on Voyager will eventually be found?
(a) It is almost certain.
(b) It is almost impossible.
(c) It is unlikely.
(d) It is reasonably likely.

2. What is the most important thing that would immediately be apparent to any alien intelligence that found the Voyager probes?
(a) The human DNA sequence.
(b) How to decode the records.
(c) The location of Earth.
(d) That the probes were intelligently designed.

3. How much bigger is Neptune than Earth?
(a) Forty times.
(b) A hundred times.
(c) Four times.
(d) Two hundred times.

4. What did Galileo demonstrate?
(a) The moon does not orbit the Earth.
(b) The Sun is just a star.
(c) The Earth is not the only planet.
(d) The stars are fixed.

5. When did the belief that Venus was a "sister planet" to Earth become dispelled?
(a) The late nineteenth century.
(b) The mid twentieth century.
(c) The early twentieth century.
(d) The mid nineteenth century.

Short Answer Questions

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

2. Which other nation besides the United States led the way in space exploration?

3. In the analogy Sagan makes in Chapter 5 the reader is asked to imagine they are seeing Earth from what perspective?

4. Mars apparently once had what resource?

5. What was the name of the mission that sent the first probes to Venus?

(see the answer key)

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