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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 5, Is There Intelligent Life on Earth?, Chapter 6, The Triumph of Voyager.

Multiple Choice Questions

1. Sagan suggest that modern religious thinking treats scientific evidence in what way?
(a) It is cautious about the evidence.
(b) It blatantly disregards the evidence.
(c) It intrudes on the evidence.
(d) It makes no statements about the evidence.

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

3. What space probe was an important part of Sagan's career, and passed by a major planet in 1976?
(a) Tesla.
(b) Viking.
(c) Newton.
(d) Ion.

4. How many planets were known to ancient people?
(a) Six.
(b) Five.
(c) Four.
(d) Three.

5. Which of the following is NOT one of the major unknowns that Sagan says he will address in this book?
(a) How humans can explore space.
(b) What humanity's future is.
(c) Whether or not there is intelligent life on nearby planets.
(d) Why humans should explore space.

Short Answer Questions

1. How old does Sagan state that "fundamentalist monotheists" believe the Earth to be?

2. When were the Voyager spacecraft launched?

3. What scientist is credited with making the first discoveries that caused problems for the geocentric theory?

4. Which planet was Voyager 2 intended to visit first?

5. What major change have humans made to the environment that would be easily detectable from space?

(see the answer key)

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