Notes
a) UV light (sun) - Short wavelength, high energy
b) 50% reflected back out to space (before atmosphere penetration) = due to clouds
c) Absorption on Earth SA = UV light converted and emitted as infrared
d) Infrared light = emitted back towards outer space (Space - as heat)
Greenhouse effect
f) Greenhouse gases - Water vapour, CO4 , CH4
- d) -- IR hits GHG --> f) = g) absorbs energy BUT re-emitts in ALL DIRECTIONS (backdown, raising SA temp.).
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