The study of the atmosphere and weather conditions is known as ______.
  • meteoroid
  • meteorology
  • meteor
  • meteorologist
Which of the following gases is NOT a part of the atmosphere?
  • Argon
  • Oxygen
  • Nitrogen
  • Radon
This is really a very thin layer that surrounds Earth and is kept in place by the gravitational pull of the Earth.
  • The aurora borealis
  • The ozone
  • The atmosphere
  • The Ionosphere
This is where most meteoroids burn up and where you can see the trails of meteors.
  • The Mesosphere
  • The Stratosphere
  • The Troposphere
  • The Thermosphere
This level of the atmosphere extends from the surface of the Earth upwards for approximately 7 miles making it the level in which we and all life lives.
  • The Stratosphere
  • The Mesosphere
  • The Thermosphere
  • The Troposphere
This light show phenomenon occurs when particles from the sun enter into the Ionosphere near either the North Pole or the South Pole.
  • Ozone
  • Aurora borealis
  • Clouds
  • Water vapors
This does not have a definite outer limit meaning that it doesn’t just suddenly end but rather extends outward into space.
  • The Ionosphere
  • The Stratosphere
  • The Thermosphere
  • The ozone
Most commercial airplanes fly in this layer of the atmosphere.
  • The Stratosphere
  • The Troposphere
  • The Exosphere
  • The Mesosphere
The Thermosphere extends upward from the Earth’s surface for _____ miles and then thins so that we don’t know where it ends.
  • 56
  • 621
  • 31
  • 65
The aurora borealis occurs in this layer of the atmosphere.
  • The Mesosphere
  • The Exosphere
  • The Stratosphere
  • The Ionosphere
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