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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 11, Evening and Morning Star, Chapter 12, The Ground Melts.

Multiple Choice Questions

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

2. How does Sagan describe his reaction to the difficulties in detecting human life and intelligence on Earth from space?
(a) Disappointing.
(b) Aggravating.
(c) Sobering.
(d) Unsurprising.

3. Besides the Voyager spacecraft, what does Sagan cite as a major triumph by NASA?
(a) The moon landings.
(b) The Mars rovers.
(c) The Hubble Telescope.
(d) The Gemini project.

4. What is the constituent particle of light?
(a) The electron.
(b) The neutrino.
(c) The photon.
(d) The neutron.

5. What material that humans have added to the environment would be easily detectable from space?
(a) Methane.
(b) Plastics.
(c) Chlorofluorocarbons.
(d) Carbon dioxide.

Short Answer Questions

1. Sagan describes humans as which of the following, with respect to their arrival in the universe?

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

3. How old are the terrain features generated by Venus' volcanoes?

4. How fast was Voyager I moving in 1990?

5. What is notable about pictures taken of the Earth from the moon?

(see the answer key)

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