Pale Blue Dot: A Vision of the Human Future in Space Test | Final Test - Medium

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This test consists of 5 multiple choice questions, 5 short answer questions, and 10 short essay questions.

Multiple Choice Questions

1. When does Sagan think that the human race will be "on its way"?
(a) When we begin living in space.
(b) When we reach another star.
(c) When we begin colonizing other planets.
(d) When we make contact with another intelligent species.

2. Sagan suggests that the Apollo missions were primarily about what?
(a) Technology.
(b) Military strategy.
(c) Politics.
(d) Science.

3. What is the shape of the galaxy closest to the Milky Way?
(a) Spiral.
(b) Disc.
(c) Globular.
(d) Cluster.

4. How does Sagan characterize most of the benefits gleaned from the space programs of the 60s and 70s?
(a) They were relatively unimportant.
(b) They were underestimated.
(c) They were intangible.
(d) They were unexpected.

5. Sagan discusses in detail a theory that Saturn's rings are caused by what effect?
(a) Ether condensation.
(b) Planetary tides.
(c) Cosmic perturbation.
(d) Gravity waves.

Short Answer Questions

1. Which of the following is one of the moons of Mars?

2. What is the primary distinguishing feature that SETI looks for to identify a communication from an intelligent source?

3. According to the plans Sagan discussed, how would nuclear weapons typically be used to stop an asteroid from colliding with the Earth?

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

5. What does Sagan believe about weapons of mass destruction?

Short Essay Questions

1. What promising signs does Mars have for being host to life?

2. What profit motivations exist in a manned mission to Mars?

3. What does Sagan say that it is probably the fate of humanity to "live in the dark"?

4. Why does Sagan believe that America sent men to the moon?

5. What major environmental catastrophes does Sagan warn against in Chapter 14, "Exploring Other Worlds and Protecting One"?

6. What is unusual about the surface of Venus?

7. How well can an asteroid's path be calculated?

8. How could planetary tides pull a small planet apart?

9. Why does Sagan suggest that space exploration aids in protecting the planet?

10. What is the purpose of SETI and how does it operate?

(see the answer keys)

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