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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 5, Is There Intelligent Life on Earth?, Chapter 6, The Triumph of Voyager.

Multiple Choice Questions

1. Einstein's work undermined what concept?
(a) That the Sun is unique.
(b) That humans can travel to distant stars.
(c) That our frame of motion is stationary.
(d) That light is the fastest thing in the universe.

2. At the time of the writing of this book, what is the farthest planet that humans had reached through the use of exploratory probes?
(a) Saturn.
(b) Uranus.
(c) Neptune.
(d) Pluto.

3. What planet did Sagan spend a great deal of time studying when an important space probe passed near it in 1976?
(a) Saturn.
(b) Mars.
(c) Venus.
(d) Mercury.

4. What planet represents the farthest distance from Earth that the Voyager craft were intended to function at?
(a) Mars.
(b) Jupiter.
(c) Saturn
(d) Uranus.

5. Which of the following is one of the "great demotions" that Sagan cites?
(a) The Earth is 6 billion years old.
(b) There may have been life on Mars.
(c) There are planets orbiting other stars.
(d) Light and magnetism are the same thing.

Short Answer Questions

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

2. How many planets were known to ancient people?

3. Sagan suggests that throughout history, many have claimed that our species is what?

4. As of 1990, how many moons did the Voyager craft explore?

5. What other medium was used to express the desire to wander, according to Sagan, as human civilization developed?

(see the answer key)

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