Class 7 Biology Forests: Our Lifeline Introduction
  • Forests are the green lungs and water purifying systems in nature.


         Fig. Forest 

  • Forests look green because tree tops form a green cover over the land in the forest.
  • Environment of forest is peaceful and cool breeze blows.
  • Forest is a habitat of many plants and animals.


       Fig. Plants and animal in the forest 

  • Forests pump oxygen which we breathe in and keep the earth cool by absorbing carbon dioxide, a major element of global warming.

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