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5 Written questions

5 Multiple choice questions

  1. makes conditions on Earth suitable for living things
  2. plants & animals take it directly from the air
  3. essential to life, plants need it to produce food & animals give it off as a waste product
  4. the layer of gases that surround the planet
  5. water in the form of gas

4 True/False questions

  1. weathercondition of the Earth's atmosphere at a particular time and place


  2. oxygennecessary for a fire to burn


  3. laboratoriesa place pure air is found


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