Презентация на тему "Презентация в power point Защита окружающей среды" 6 класс

Содержание

• 
  Слайд 1

  The natural world is in danger!!!

• 
  Слайд 2
  

  Every year people are becoming more and more air pollution. This is because of factories, cars and other activities. To prevent this problem people should to put filters. Air pollution

• 
  Слайд 3
  

  Greenhouse effect works like this:sunlight gives us heat.Some of the heat warms atmosphere,and some of the heat goes back into space.Nowadays the air surrounding the earth has become much warmer because the heat can`t go back into space. Greenhouse effect.

• 
  Слайд 4
  

  Greenhouse effect. The theme.

• 
  Слайд 5
  

  Ozone holes are becoming from pollution of the air.People burn things,factories throw chemicals into the air.it has an influence on our envirnonment.because of the ozone holes we have got an ultraviolet rays.the burn our planet.ultraviolet radiation cac cause skin cancer. Ozone holes.

• 
  Слайд 6
  

  During the last 100 years people have produced a lot of carbon dioxide.people and animals breathe in oxygen and breathe out carbon dioxide.we produce carbon dioxide when we burn things.trees produce oxygen.human cut down big areas of trees.it means that it is become more carbon dioxide. Oxygen and carbon dioxide.

• 
  Слайд 7
  

  Every year people pollute water.there are no river or sea which is`t used sa a dump.our water is poisoned because factories pour waste into rivers.water creatures can not live in such water and they forced to leave thei habitat or die. Water pollution.

• 
  Слайд 8
  

  Water pollution

• 
  Слайд 9
  

  people began to realize their mistakes.They started to save our world from pollution.I hope that we can do it together)) People became cleverer!!!)))

• 
  Слайд 10
  

  Air pollution

• 
  Слайд 11
  

  The end))) Let`s save the world !!!)))