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. Besides the Voyager spacecraft, what does Sagan cite as a major triumph by NASA?
(a) The Hubble Telescope.
(b) The moon landings.
(c) The Mars rovers.
(d) The Gemini project.

2. One feature that Sagan suggests would be easier to detect that human intelligence would be flatulence from what kind of animal?
(a) Krill.
(b) Sheep.
(c) Plankton.
(d) Cows.

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

4. Sagan suggests that throughout history, many have claimed that our species is what?
(a) Essentially good.
(b) Irredeemable.
(c) Worthless.
(d) Unique.

5. What material that humans have added to the environment would be easily detectable from space?
(a) Methane.
(b) Carbon dioxide.
(c) Plastics.
(d) Chlorofluorocarbons.

6. According to Sagan, how do early Earth and Titan compare?
(a) They are similar.
(b) They are totally different.
(c) They are almost exactly the same.
(d) They are only vaguely related.

7. How much bigger is Neptune than Earth?
(a) Four times.
(b) Two hundred times.
(c) Forty times.
(d) A hundred times.

8. Who helped Sagan calculate that Titan should be host to oceans?
(a) Cassini.
(b) Dermott.
(c) Kuiper.
(d) Mach.

9. Sagan says that which of the following is the most immediately obvious thing about the Earth?
(a) Its geological features.
(b) The existence of life.
(c) Its meteorological features.
(d) The existence of intelligent life.

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

11. How old does Sagan state that "fundamentalist monotheists" believe the Earth to be?
(a) 300,000 years old.
(b) 1 million years old.
(c) 6,000 years old.
(d) 10,000 years old.

12. What does Sagan say that philosophy and religion should provide?
(a) Truth.
(b) Comfort.
(c) Kindness.
(d) Guidance.

13. Which of the following is a major point opponents of space exploration raise?
(a) The problems on Earth should be solved first.
(b) There is nothing of value anywhere else in the solar system.
(c) No good has ever come of space exploration.
(d) Space exploration exists for national prestige only.

14. What role does Sagan suggest that religion has played in the development of science?
(a) Science progressed in spite of religion.
(b) Religiously-minded individuals often become scientists.
(c) Religion informs and guides scientific development.
(d) Religion has aided science in significant ways.

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

Short Answer Questions

1. What type of waves could be analyzed to demonstrate that there is intelligent life on Earth?

2. What does Neptune posses at its core that Uranus apparently lacks?

3. Earth will most likely lose contact with the Voyager probes when what happens?

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

5. Sagan helped to discover that Saturn provides what critical element to Titan?

(see the answer keys)

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