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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. Sagan describes humans as which of the following, with respect to their arrival in the universe?
(a) Slow movers.
(b) Extreme latecomers.
(c) Early adopters.
(d) Middling achievers.

2. At the time this book was written, how many Mars Observers had been flown successfully?
(a) Five.
(b) None.
(c) Three.
(d) One.

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

4. What did Galileo demonstrate?
(a) The moon does not orbit the Earth.
(b) The stars are fixed.
(c) The Sun is just a star.
(d) The Earth is not the only planet.

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

Short Answer Questions

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

2. How much bigger is Neptune than Earth?

3. When does Sagan think that the human race will be "on its way"?

4. What form do the materials that planets emerge from take before they coalesce into proto-planets?

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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