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

2. Mars apparently once had what resource?
(a) Oceans of hydrocarbons.
(b) Liquid water.
(c) Ice sheets.
(d) Organic compounds.

3. What fault does Sagan admit that science has?
(a) It is always inaccurate.
(b) It can only develop theories, not laws.
(c) It is marred by human perception and arrogance.
(d) It fails to uplift human spirits.

4. Why does Sagan say that Mars is a more desirable target for human exploration than the moon?
(a) It has more resources.
(b) It has more to teach.
(c) It is more like Earth.
(d) It is more inhabitable.

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

Short Answer Questions

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

2. Where does Neptune fall in the mission plan for the Voyager probes?

3. Where does Sagan think that life will most likely be eventually found?

4. What did Galileo demonstrate?

5. Where does Sagan think it is most likely that life will be found on Mars?

(see the answer key)

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