chemistry of the atmosphere - the greenhouse effect Flashcards
(6 cards)
1
Q
what changes the amount of water vapor in the atmosphere
A
temperature
2
Q
how much do both carbon and methane take up in our atmosphere
A
carbon - 0.04%
methan - 0.0002%
3
Q
what are 3 green house gases
A
water vapor, methane and carbon dioxide
4
Q
examples of short wavelength variation
A
ultra violet and visible light
5
Q
explain the greenhouse effect
A
- energy from the sun travels to the earth as short wavelength radiation
- this radiation then either gets reflected back into space or passes through the atmosphere
- the energy of radiation is absorbed when it reaches the surface of earth
- the surface of the earth now radiates this energy as long wave lengths e.g. intra- red
- the energy is absorbed
- energy is trapped causing a rise in temperature
6
Q
what is one key fact about the greenhouse effect
A
the greenhouse effect actually keeps the temperature on earth warm enough to support life