EM radiation and atmosphere
- Created by: abic1
- Created on: 03-05-16 20:16
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- EM radiation and the atmosphere
- some radiation from the sun passes through the atmosphere
- the earths atmosphere filters out some radiation from the sun by absorbing or reflecting it
- the earth emits some EM radiation back into space
- most radiation from the earth is infrared
- emitted radiation from the earth is at a lower frequency than it is when emitted from the sun
- infrared radiation is absorbed by carbon dioxide, methane and water vapour
- these gasses re-radiate heat back to earth
- the atmosphere acts as an insulating layer
- atmosphere keeps earth warm at night
- ozone layer protects us from too much UV radiation
- greenhouse effect helps to regulate earth's temperature
- ozone layer absorbs UV radiation
- ozone layer is made up of oxygen
- ozone molecule is O3
- amount of ozone is usually constant
- loss of ozone can cause holes in the oxone layer
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