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  • What is the second most abundant gas in the atmosphere
    Oxygen
  • What gas is most abundant in Earth's atmosphere?
    Nitrogen
  • What protects Earth from harmful UV radiation?
    Ozone Layer
  • The process where heat is trapped in Earth's atmosphere by gases
    Greenhouse Effect
  • What is the layer of Earth where weather occurs?
    Troposphere
  • Give at least 2 layers of the atmosphere.
    TroSMTE
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