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This test consists of 15 multiple choice questions and 5 short answer questions.
Multiple Choice Questions
1. The Voyager probes found large amounts of what element on Titan?
2. Conditions of what type were extremely important in the creation of early life on Earth?
3. What was the state of the knowledge and belief about life on other planets at the time the book was written?
(a) It was believed there was abundant life on Mars.
(b) No signs of life were known to exist.
(c) Scientists expected to find life on most of the planets and moons.
(d) Most believed life on other planets was impossible.
4. What astronomical discovery did Galileo make that significantly damaged the geocentric theory?
(a) Planets move in ellipses.
(b) Stars are stationary relative to the Earth.
(c) Jupiter has its own moons.
(d) Gravity moves the planets.
5. Titan has what distinction among the moons of the planet it orbits?
(a) It has the widest orbit.
(b) It is the largest moon.
(c) It is the only spherical moon.
(d) It is the only moon with ice water.
6. What scientist is well-known for writing about the differences between species of animals?
7. When was Neptune discovered?
8. What is the constituent particle of light?
(a) The electron.
(b) The photon.
(c) The neutron.
(d) The neutrino.
9. Which of the following is NOT one of the major unknowns that Sagan says he will address in this book?
(a) How humans can explore space.
(b) Whether or not there is intelligent life on nearby planets.
(c) Why humans should explore space.
(d) What humanity's future is.
10. How much bigger is Neptune than Earth?
(a) Forty times.
(b) A hundred times.
(c) Two hundred times.
(d) Four times.
11. What major component of the Voyager craft was threatened in Sagan's plan to take a distant picture of Earth?
(a) The solar panel array.
(b) The vidicon system.
(c) The spectral analyzer.
(d) The telemetry antenna.
12. Besides the Voyager spacecraft, what does Sagan cite as a major triumph by NASA?
(a) The Mars rovers.
(b) The Gemini project.
(c) The Hubble Telescope.
(d) The moon landings.
13. Sagan describes humans as which of the following, with respect to their arrival in the universe?
(a) Slow movers.
(b) Middling achievers.
(c) Early adopters.
(d) Extreme latecomers.
14. In Chapter 5 Sagan asks the reader to imagine that they are which of the following?
(a) An ant.
(b) An alien.
(c) A time traveler.
(d) An ancient person.
15. What role does Sagan suggest that religion has played in the development of science?
(a) Religion has aided science in significant ways.
(b) Science progressed in spite of religion.
(c) Religiously-minded individuals often become scientists.
(d) Religion informs and guides scientific development.
Short Answer Questions
1. Sagan compares the human need for religion to what?
2. According to Sagan, how do early Earth and Titan compare?
3. About how long does Sagan suggest that human beings have been "settled down"?
4. As of 1990, how many moons did the Voyager craft explore?
5. Which planet was Voyager 2 intended to visit first?
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