• 1. 
    What is the atmosphere?

  • The name of a trendy restaurant
  • A layer of gases that surround the Earth
  • It is another name for outer space
  • The first layer of the Earth's crust
  • 2. 
    Which of the following best describes the Earth's atmosphere?

  • A large cloud that generates the Earth's electromagnetic field
  • A big blanket absorbing the Sun's heat
  • An empty space
  • A thin towel that does very little to protect the Earth
  • 3. 
    What is the ozone layer?

  • The layer of the Earth below the crust
  • A portion of the Earth's atmosphere that protects the Earth from radiation
  • All of the above
  • The layer of the atmosphere that we breathe
  • 4. 
    What two elements make up the majority of the Earth's atmosphere?

  • Hydrogen and nitrogen
  • Oxygen and hydrogen
  • Nitrogen and oxygen
  • Oxygen and helium
  • 5. 
    What layer of the Earth's atmosphere is where most meteors burn up upon entry?

  • Mesosphere
  • Exosphere
  • Thermosphere
  • Stratosphere
  • 6. 
    What layer of the Earth's atmosphere is the outermost layer and where the atmosphere is the thinnest?

  • Stratosphere
  • Mesosphere
  • Thermosphere
  • Exosphere
  • 7. 
    What layer of the Earth's atmosphere is the layer next to the Earth?

  • Troposphere
  • Exosphere
  • Thermosphere
  • Mesosphere
  • 8. 
    What layer of the Earth's atmosphere is heated by the Sun hitting the ozone layer?

  • Stratosphere
  • Exosphere
  • Thermosphere
  • Mesosphere
  • 9. 
    What layer of the Earth's atmosphere has a very thin atmosphere, but can also become very hot?

  • Exosphere
  • Mesosphere
  • Thermosphere
  • Stratosphere
  • 10. 
    In what layer of the Earth's atmosphere do planes usually fly?

  • Mesosphere
  • Troposphere
  • Thermosphere
  • Exosphere
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