Page 20 - Pollution
P. 20

Causes of Water Pollution














       Fertilizers

       They are widely used in farming to enhance crop

       yield. Farmers and agriculturalists use pesticides

       to protect crops and plants from pests. However,

       both fertilizers and pesticides are made up of

       chemicals. So when rain falls on the crops, the

       chemicals are carried in the rainwater to rivers

       and lakes causes water pollution.









































                                                                                                    20
   15   16   17   18   19   20   21   22   23   24   25