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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 9, An American Ship at the Frontiers of the Solar System, Chapter 10, Sacred Black.

Multiple Choice Questions

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

2. What did ancient people notice about planets that set them apart from the stars?
(a) They had complex motions and were not fixed.
(b) They had unique colors.
(c) They grew closer from time to time.
(d) They were much larger.

3. Which of the following is one of the "great demotions" that Sagan cites?
(a) The Earth is 6 billion years old.
(b) Light and magnetism are the same thing.
(c) There may have been life on Mars.
(d) There are planets orbiting other stars.

4. What is Neptune's largest moon?
(a) Triton.
(b) Ariadne.
(c) Europa.
(d) Eurydice.

5. What does Neptune posses at its core that Uranus apparently lacks?
(a) A solid surface.
(b) A heat source.
(c) Iron.
(d) Silicon.

Short Answer Questions

1. How fast was Voyager I moving in 1990?

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

3. Titan orbits what planet?

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

5. According to Sagan, how do early Earth and Titan compare?

(see the answer key)

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