Page 13 - Pollution
P. 13

Ways to Reduce Air Pollution
















          Trees          play         a       very
          important            role      in     the

          environment.                       They

          provide not only food and

          shelter, but also oxygen.
          Human               beings           and

          animals             breathe             in

          oxygen and breathe out
          carbon dioxide. To make

          their food, plants take in

          carbon            dioxide            and
          produce the oxygen that

          we breathe. Any increase

          or decrease in the amount
          of these gases in the air

          will affect the health of

          living things. Trees help

          to maintain this balance
          in the air.












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