explain what global warming is?

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Global warming is a phenomenen caused due to two processes --

  • Due to pollution all the pollutants go towards the ozone layer and are called CFC's ( Chloroflurocarbons ) which cause a hole in the ozone ( O2 ).
  • Due to increase in the amount of carbondioxide it acts as plastic. It forms a layer above the surface of the earth and due to the hole in the ozone layer heat and harmful UV rays enter the layer of CO2 but are not able to go back.
  • Thusthe heat is trapped in the earth which causes global warming.
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