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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 15, The Gates of the Wonder World Open, Chapter 16, Scaling Heaven.

Multiple Choice Questions

1. When does Sagan think that the human race will be "on its way"?
(a) When we begin colonizing other planets.
(b) When we begin living in space.
(c) When we make contact with another intelligent species.
(d) When we reach another star.

2. When probes enter the atmospheres of other planets, what color do they often see the sky to be?
(a) Black.
(b) Blue.
(c) Yellow.
(d) Red.

3. What does Neptune's moon have less of compared to Titan?
(a) Carbon.
(b) Ice.
(c) Potassium.
(d) Iron.

4. At the time this book was written, how many planets were known to exist around other stars?
(a) None.
(b) About fifty.
(c) About twenty.
(d) Ten.

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

Short Answer Questions

1. What role does Sagan suggest that religion has played in the development of science?

2. Sagan suggest that modern religious thinking treats scientific evidence in what way?

3. How does Sagan say that science relates to the existence of a divine being?

4. Earth will most likely lose contact with the Voyager probes when what happens?

5. What was Neptune's position in the solar system as of the writing of this book?

(see the answer key)

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