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5 Written questions

5 Multiple choice questions

  1. plants & animals take it directly from the air
  2. a place pure air is found
  3. makes up 78% of the gases in dry air
  4. water in the form of gas
  5. condition of the Earth's atmosphere at a particular time and place

4 True/False questions

  1. oxygenmakes up 21% of the gases in dry air

          

  2. greenhouse effectthe trapping of heat by the gases in the atmosphere

          

  3. Earth's atmospherethe layer of gases that surround the planet

          

  4. carbon dioxidea place pure air is found

          

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