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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. What visual resolution would be required to determine that humans are related to the intelligence on Earth?
(a) 10 cm.
(b) 10 meters.
(c) 1 meter.
(d) 1 cm.

2. As of 1990, how many planets did the Voyager craft explore?
(a) Four.
(b) Five.
(c) Three.
(d) Two.

3. The Anthropic Principle is divided into two theories that are termed what?
(a) Old and new.
(b) Strong and weak.
(c) Orthodox and reformed.
(d) Greater and lesser.

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

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

Short Answer Questions

1. What means does Sagan suggest that humans use to represent and express their desire to wander?

2. How fast was Voyager I moving in 1990?

3. How does Sagan describe his reaction to the difficulties in detecting human life and intelligence on Earth from space?

4. What strange motion do all of the stars in the sky exhibit?

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

(see the answer key)

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