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

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

Multiple Choice Questions

1. At the time this book was written, about how many asteroids were known to have paths that take them close to the Earth?
(a) 1000.
(b) 500.
(c) 2000.
(d) 200.

2. In what year did humans visit the moon for the last time?
(a) 1969.
(b) 1975.
(c) 1972.
(d) 1979.

3. What does Martian soil seem to contain?
(a) Methane.
(b) Organic material.
(c) Ice.
(d) Oil.

4. It is believed that some of Saturn's rings may eventually form into what?
(a) Asteroids.
(b) Comets.
(c) Meteors.
(d) Moons.

5. What happens to the number of asteroids and comets in the solar system as time goes on?
(a) It diminishes.
(b) It remains about the same.
(c) Its change is unknown.
(d) It increases.

6. Which of the following is NOT a major resource on Mars that makes it viable for "terraforming"?
(a) Carbon dioxide.
(b) Sunlight.
(c) Water.
(d) Calcium deposits.

7. What process would be critical to terraforming Mars?
(a) Oxidation.
(b) The Turing effect.
(c) Ozone catalyzing.
(d) The greenhouse cycle.

8. According to Sagan, what was the major advantage of the attitude of the government towards the Apollo project?
(a) Computers advanced in power rapidly.
(b) Rocket science progressed quickly.
(c) New propulsion systems were developed.
(d) There was plenty of funding for space.

9. Where was NASA's first SETI facility located?
(a) The Appalachian mountain range.
(b) The Sierra Nevada mountain range.
(c) The Nevada salt flats.
(d) The Mojave desert.

10. The primary discipline that Sagan argues nations benefit from by investing in space exploration is called which of the following?
(a) Gestalt geosurveying.
(b) Interstellar surveying.
(c) Atmospheric metrics.
(d) Planetary science.

11. Why do some suggest capturing asteroids in Earth orbit?
(a) To study them.
(b) To use them as space stations.
(c) To use them as weapons.
(d) To mine them for resources.

12. Sagan says that the dark matter that surrounds the Milky Way galaxy takes what shape?
(a) A disk.
(b) A sphere.
(c) A halo.
(d) A column.

13. How well does Sagan say his typical audience handles the practical details of a Mars mission?
(a) They are meticulous thinkers on the subject.
(b) They are well-connected and able to deal with the details.
(c) They are hopelessly incapable of dealing with them.
(d) They are uninterested in the details.

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

15. What is the main component of the atmosphere of Venus?
(a) Hydrogen.
(b) Sulfuric acid.
(c) Quicklime gas.
(d) Phosphate.

Short Answer Questions

1. What did Steven Hawking worry about with regard to black holes?

2. About how many channels does SETI search for signs of extraterrestrial communication on?

3. Sagan suggests that the Apollo missions were primarily about what?

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

5. Sagan says that the moon was once understood as a symbol of which of the following?

(see the answer keys)

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