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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 11, Evening and Morning Star, Chapter 12, The Ground Melts.

Multiple Choice Questions

1. What did Galileo demonstrate?
(a) The Earth is not the only planet.
(b) The stars are fixed.
(c) The moon does not orbit the Earth.
(d) The Sun is just a star.

2. How fast was Voyager I moving in 1990?
(a) 40,000 mph.
(b) 500 mph.
(c) 1,000 mph.
(d) 10,000 mph.

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

4. What strange motion do all of the stars in the sky exhibit?
(a) They change directions randomly.
(b) They move in identical tiny ellipses.
(c) They tend to move towards each other.
(d) They appear to drift towards the Earth.

5. What is the most important thing that would immediately be apparent to any alien intelligence that found the Voyager probes?
(a) The human DNA sequence.
(b) That the probes were intelligently designed.
(c) How to decode the records.
(d) The location of Earth.

Short Answer Questions

1. What is notable about pictures taken of the Earth from the moon?

2. What is the main component of the atmosphere of Venus?

3. The atmosphere of Venus would best be described as which of the following?

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

5. Sagan expects both Voyager spacecrafts to continue to broadcast data through what year?

(see the answer key)

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