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Air

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    Science - Air
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  • 1. _________________ is the layer of air around our Earth.
    atmosphere
  •  15
  • Air is a mixture of _______________ such as nitrogen, oxygen, carbon dioxide and noble gases.
    gases
  •  15
  • All living things need ______________ to breathe.
    oxygen
  •  15
  • Plants need _________________ and sunlight to make food.
    carbon dioxide
  •  15
  • Without air, sound cannot _________________.
    travel
  •  15
  • The atmosphere helps to maintain the __________________ of our Earth.
    temperature
  •  15
  • Burning of fossil fuels causes __________________.
    air pollution
  •  15
  • Air pollution is harmful to our _______________ and also reduces the visibility.
    health
  •  15
  • We can reduce air pollution by practicing _______________, taking public transport and conserving electricity.
    carpooling
  •  15
  • Moving air is known as ________________.
    wind
  •  15
  • Wind moves from a _____________ place to a _____________ place.
    cool; warm
  •  15
  • Wind can be used to produce _________________.
    electricity
  •  15
  • Wind moving at high speeds can ______________ properties and be harmful to lives.
    damage
  •  15