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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. Earth will most likely lose contact with the Voyager probes when what happens?
(a) They pass the troposphere.
(b) Their radio transmitters die.
(c) Their solar cells die.
(d) They reach the Kuiper belt.

2. Where does Neptune fall in the mission plan for the Voyager probes?
(a) They will go into decaying orbit around it.
(b) They will pass by it only at an immense distance
(c) They will return to the inner solar system after passing it.
(d) It is their final planetary destination.

3. According to Sagan, when viewed from space, how apparent would the existence of life on Earth be?
(a) Impossible to discern.
(b) Obvious.
(c) Ambiguous.
(d) Difficult to discern.

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

5. CFCs are chemicals that is primarily hazardous to the environment in what area?
(a) The biosphere.
(b) The ozone-layer.
(c) The stratosphere.
(d) The lithosphere.

Short Answer Questions

1. What planet in the solar system obviously suffers from a severe greenhouse gas effect?

2. When did the belief that Venus was a "sister planet" to Earth become dispelled?

3. What material that humans have added to the environment would be easily detectable from space?

4. The primary discipline that Sagan argues nations benefit from by investing in space exploration is called which of the following?

5. In Chapter 5 Sagan asks the reader to imagine that they are which of the following?

(see the answer key)

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