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

2. How old does Sagan state that "fundamentalist monotheists" believe the Earth to be?
(a) 10,000 years old.
(b) 6,000 years old.
(c) 300,000 years old.
(d) 1 million years old.

3. Many of organic molecules arrived on Earth from what source?
(a) Meteors.
(b) Comets.
(c) Space dust.
(d) Asteroids.

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

5. What does Sagan say is an easy way to visually identify planets?
(a) Their size.
(b) The color of their atmospheres.
(c) Their brightness.
(d) Their movements.

Short Answer Questions

1. What does Neptune's moon have less of compared to Titan?

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

3. What does the Geocentric theory state?

4. Titan orbits what planet?

5. Which of the following is NOT one of the ways that Sagan says life seems to be?

(see the answer key)

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