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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 21, To The Sky!, Chapter 22, Tiptoeing Through the Milky Way.

Multiple Choice Questions

1. According to Sagan, how profitable is it for a nation to invest in space exploration?
(a) It is highly profitable.
(b) It has high costs.
(c) It has great benefits in a limited scope.
(d) It is not related to a nation's welfare.

2. What type of government is Sagan most opposed to?
(a) Plutocracy.
(b) Socialism.
(c) Fascism.
(d) Theocracy.

3. Which of the following characteristics of Venus is LEAST similar to Earth's?
(a) Orbit.
(b) Gravitation.
(c) Size.
(d) Mass.

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

5. What type of missions does Sagan recommend in order to prepare to deal with Earth-bound asteroids?
(a) Meteor landings.
(b) Asteroid landings.
(c) Extra-planetary manned missions.
(d) Spacewalks.

Short Answer Questions

1. What is notable about the stars in Sagan's distant picture of the Earth?

2. Conditions of what type were extremely important in the creation of early life on Earth?

3. What visual resolution would be required to determine that humans are related to the intelligence on Earth?

4. How old are the terrain features generated by Venus' volcanoes?

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

(see the answer key)

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