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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 17, Routine Interplanetary Violence, Chapter 18, The Marsh of Camarina.

Multiple Choice Questions

1. 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) What humanity's future is.
(c) Why humans should explore space.
(d) How humans can explore space.

2. What is notable about pictures taken of the Earth from the moon?
(a) There is no visible sign of mankind.
(b) The Earth appears completely dark.
(c) No landmasses can be seen.
(d) The Earth is always in a half-eclipse.

3. Which of the following is NOT one of the ways that early planets may have been made incapable of bearing life?
(a) Being pushed into a distant orbit.
(b) Being thrown into outer space.
(c) Being heavily bombarded by meteors.
(d) Falling into the sun.

4. Conditions of what type were extremely important in the creation of early life on Earth?
(a) Atmospheric.
(b) Geological.
(c) Aquatic.
(d) Littoral.

5. In the analogy Sagan makes in Chapter 5 the reader is asked to imagine they are seeing Earth from what perspective?
(a) From a distorted frame of reference.
(b) For the first time.
(c) From an immense distance.
(d) Very close up.

Short Answer Questions

1. Which of the following planets is NOT known to have a ring system?

2. What unusual source of energy do the Voyager spacecraft take advantage of?

3. What type of waves could be analyzed to demonstrate that there is intelligent life on Earth?

4. According to Sagan, what was the major advantage of the attitude of the government towards the Apollo project?

5. At the time of the writing of this book, what is the farthest planet that humans had reached through the use of exploratory probes?

(see the answer key)

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