Layers of the Atmosphere Flashcards

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0
Q

Gravity holds the layers of the…

A

Earth

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1
Q

What are the layers of the atmosphere?

A
  • Troposphere
  • Stratosphere
  • Mesosphere
  • Thermosphere
    • Ionosphere
    • Exosphere
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2
Q

99% of the total mass of the atmosphere of the earth is below an altitude of ___

A

32 kilometers

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3
Q

Name two facts about the troposphere:

A
  • Contains almost all of the mass of the atmosphere

- The tropopause is the boundary between the troposphere and the stratosphere

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4
Q

Name two facts about the stratosphere:

A
  • Extends to an altitude of about 50km

- The ozone layer (absorbs the ultraviolet rays)

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5
Q

Name two facts about the mesosphere:

A
  • Extends to about 80km
  • Temperature begins to decrease here
  • Protects earth from meteoroids
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6
Q

Name two facts about the thermosphere:

A
  • Hottest layer of the atmosphere
  • Breaks into two sublayers:
    • Ionosphere(aurora borealis occurs here)
    • Exosphere(satellites are present here)
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