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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 13, The Gift of Apollo, Chapter 14, Exploring Other Worlds and Protecting This One.

Multiple Choice Questions

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

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

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

4. Which of the following is a major point opponents of space exploration raise?
(a) The problems on Earth should be solved first.
(b) Space exploration exists for national prestige only.
(c) There is nothing of value anywhere else in the solar system.
(d) No good has ever come of space exploration.

5. Which of the following is NOT one of the major unknowns that Sagan says he will address in this book?
(a) Whether or not there is intelligent life on nearby planets.
(b) How humans can explore space.
(c) What humanity's future is.
(d) Why humans should explore space.

Short Answer Questions

1. What is one trait of human beings that Sagan cites as being responsible for our belief in our importance in the universe?

2. In what year did humans visit the moon for the last time?

3. Kuiper discovered that Titan has what chemical vital to the development of life?

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

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

(see the answer key)

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