CBSE  /  Class 11  /  Geography  /  Composition and Structure of Atmosphere

  • 1. 
    It is an element of atmosphere

  • Tides
  • Pressure
  • Water currents
  • Waves

  • 2. 
    Which gas is opaque to the outgoing terrestrial radiation?

  • Dust Particles
  • Ozone
  • Carbon dioxide
  • Water Vapour

  • 3. 
    The uppermost layer of the atmosphere is

  • Mesosphere
  • Exosphere
  • Ionosphere
  • Stratosphere

  • 4. 
    Which one of the following gases constitutes the major portion of the atmosphere?

  • Oxygen
  • Nitrogen
  • Argon
  • Carbon dioxide

  • 5. 
    Which of the following gases absorbs ultraviolet rays?

  • Carbon Dioxide
  • Neon
  • Ozone
  • Nitrogen

  • 6. 
    Excess carbon dioxide in the atmosphere due to pollution will cause

  • Earth's temperature to rise
  • Earth's temperature to fall
  • Decrease in weather phenomenon
  • Ozone layer to become thicker

  • 7. 
    Which zone separates the troposphere from the stratosphere?

  • Mesospause
  • Tropopause
  • Ionospause
  • Stratopause

  • 8. 
    The increase in the volume of carbon dioxide for the past few decades is mainly due to

  • deforestation
  • climate change
  • atmospheric composition
  • burning of fossil fuels

  • 9. 
    What envelopes the earth all round?

  • Hydrosphere
  • Lithosphere
  • Atmosphere
  • Biosphere

  • 10. 
    The radiations that heat earth's atmosphere, comes from the

  • Sun
  • Earth
  • Ionosphere
  • Sun and Earth
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