• 1. 
    Weightlessness during spaceflight is beneficial to astronauts’ health.

  • TRUE
  • FALSE
  • 2. 
    The Sun’s heat is a threat to astronauts in Earth orbit.

  • TRUE
  • FALSE
  • 3. 
    The U.S. and Soviet space programs had their roots in spying.

  • TRUE
  • FALSE
  • 4. 
    The U.S. and Soviet space programs used identical equipment and techniques.

  • TRUE
  • FALSE
  • 5. 
    The Space Shuttle can be damaged by ice.

  • TRUE
  • FALSE
  • 6. 
    All astronauts are from the United States or the Soviet Union.

  • TRUE
  • FALSE
  • 7. 
    The first animal in orbit was a monkey.

  • TRUE
  • FALSE
  • 8. 
    More than 20 people have walked on the moon.

  • TRUE
  • FALSE
  • 9. 
    No Russian spacecraft ever landed on the Moon.

  • TRUE
  • FALSE
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