The percentages of sewage and farm runoff shows that these two factors add greater amount of pollutants in the environment.
Effects of sewage and farm runoff
Farms runoff is a huge source of runoff, as rainwater and irrigation drain fertilizers and pesticides into bodies of water which is the main cause of water pollution. Sewage water also have greater contribution in pollution.
So we can conclude that the percentages of sewage and farm runoff shows that these two factors add greater amount of pollutants in the environment.
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