It is an element of atmosphere
  • Tides
  • Pressure
  • Water currents
  • Waves
Which gas is opaque to the outgoing terrestrial radiation?
  • Dust Particles
  • Ozone
  • Carbon dioxide
  • Water Vapour
The uppermost layer of the atmosphere is
  • Mesosphere
  • Exosphere
  • Ionosphere
  • Stratosphere
Which one of the following gases constitutes the major portion of the atmosphere?
  • Oxygen
  • Nitrogen
  • Argon
  • Carbon dioxide
Which of the following gases absorbs ultraviolet rays?
  • Carbon Dioxide
  • Neon
  • Ozone
  • Nitrogen
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
Which zone separates the troposphere from the stratosphere?
  • Mesospause
  • Tropopause
  • Ionospause
  • Stratopause
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
What envelopes the earth all round?
  • Hydrosphere
  • Lithosphere
  • Atmosphere
  • Biosphere
The radiations that heat earth's atmosphere, comes from the
  • Sun
  • Earth
  • Ionosphere
  • Sun and Earth
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