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EVOLUTION OF THE ATMOSPHERE
PHASE 1 - VOLCANOES GAVE OUT GASES
Points (1,2,3)
PHASE 1 - VOLCANOES GAVE OUT GASES CONTINUED...
Points (4,5)
PHASE 2 - GREEN PLANTS EVOLVED AND PRODUCED OXYGEN
PHASE 3 - COMPLEX ORGANISMS EVOLVED
THE ATMOSPHERE TODAY
HUMAN ACTIVITY IS CHANGING THE ATMOSPHERE
5 MAIN POLLUTANTS
WHERE DO THE POLLUTANTS COME FROM?
DIRECT HARM FROM POLLUTANTS
INDIRECT HARM FROM POLLUTANTS
FOSSIL FUELS
COAL IS NOT A HYDROCARBON!
BURNING FUELS IS AN EXAMPLE OF OXIDATION
- COMBUSTION
BURNING FUELS AND COMBUSTION
BURNING FUELS CONTINUED...
Combustion is an example of an oxidation reaction
AIR POLLUTION - CARBON
COMPLETE AND INCOMPLETE COMBUSTION
AIR POLLUTION - SULPHUR
SULPHUR AND HOW IT POLLUTES
ACID RAIN
AIR POLLUTION - NITROGEN
NITROGEN POLLUTION
