4.12 understand that water vapour, carbon dioxide, nitrous oxide, methane and CFCs are greenhouse gases

  • Water vapour – Naturally occurring
  • Carbon dioxide –  deforestation, burning of fossil fuels
  • Nitrous oxide – Agriculture, fossil fuel combustion
  • Methane  – Waste decomposing, rice crops and cows passing wind
  • CFCs – Fridges and aerosols
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