4.12

a) UV light from the sun, has short wave length/high energy

b) 50% of this light is reflected back out to space causes= clouds

c) Absorption on earth surface- where UV is converted as infra-red

d) Infrared is shows longer wave

e) Lost to space as heat

F) Represents some of the green house gases such as water vapour co2 and methans ch4

g) The infrared light will hit green house gas will absorb this energy and then re emit it in all directions raising surface temp. Higher = green house effect

Enhanced green house effect – co2 and ch4 will absorb more escaping infrared and put it back to earth raising temps. Higher leading to climate change

CFC’s – well known for their effect in ozone layer

Carbon fluorine

Ccl3F ->sunlight – ccl3f +cl this breaks down o3 to o2, o3 is better at absorbing sunlight so we are taking that effect away.