Pale Blue Dot: A Vision of the Human Future in Space Test | Mid-Book Test - Easy

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This test consists of 15 multiple choice questions and 5 short answer questions.

Multiple Choice Questions

1. Sagan compares the human need for religion to what?
(a) An infant's need for a parent.
(b) A man's need for water.
(c) A blind person's need for a cane.
(d) An injured person's need for aid.

2. What type of waves could be analyzed to demonstrate that there is intelligent life on Earth?
(a) Microwaves.
(b) Cosmic waves.
(c) Ultraviolet waves.
(d) Radio waves.

3. What does Sagan claim is the key element of humanity's future?
(a) Terraforming.
(b) Deep space travel.
(c) Distant worlds.
(d) Faster than light travel.

4. The records on the Voyager craft are most like what type of information storage method?
(a) Magnetic data storage.
(b) Braille.
(c) A telegraph code.
(d) A phonograph.

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

6. What was Neptune's position in the solar system as of the writing of this book?
(a) It's position was uncertain.
(b) It was last.
(c) It was the last known planet.
(d) It was third to last.

7. When was Neptune discovered?
(a) 1846.
(b) 1955.
(c) 1912.
(d) 1645.

8. What visual resolution would be required to determine the existence of intelligent life on Earth?
(a) 1,000 meters.
(b) 10 cm.
(c) 1 meter.
(d) 100 meters.

9. What innovation was crucial in discovering Titan?
(a) Newton's laws of motion.
(b) The chemical rocket engine.
(c) The theory of general relativity.
(d) The telescope.

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

11. The Voyager probes found large amounts of what element on Titan?
(a) Oxygen.
(b) Iridium.
(c) Nitrogen.
(d) Helium.

12. Sagan suggest that modern religious thinking treats scientific evidence in what way?
(a) It is cautious about the evidence.
(b) It intrudes on the evidence.
(c) It makes no statements about the evidence.
(d) It blatantly disregards the evidence.

13. How likely does Sagan think it is that the records on Voyager will eventually be found?
(a) It is almost certain.
(b) It is unlikely.
(c) It is almost impossible.
(d) It is reasonably likely.

14. Which of the following is NOT one of the ways that Sagan says life seems to be?
(a) Absurd.
(b) Insignificant.
(c) Meaningless.
(d) Intentional.

15. Which other nation besides the United States led the way in space exploration?
(a) France.
(b) Japan.
(c) The Soviet Union.
(d) China.

Short Answer Questions

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

2. Titan has what distinction among the moons of the planet it orbits?

3. What is the major difference between space exploration and human exploration in the past?

4. What does Sagan say is an easy way to visually identify planets?

5. According to Sagan, when viewed from space, how apparent would the existence of life on Earth be?

(see the answer keys)

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