Page 18 - Pollution
P. 18

Causes of Water Pollution












           Some sources of water pollution are sewage,

           fertilizers, pesticides, Industrial waste and oil

           spills.









           Sewage

           It is the waste and used

           water        from        homes          and
           factories carried through

           drains and pipes. It is

           impure and dirty water.
           Much of the sewage is

           released           into rivers and

           seas.       It     is     unsafe          for

           humans               and          marine
           organisms as well. This

           toxic       water          can       cause

           health            problems              and

           diseases in animals                     and
           human beings.









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