The example that not indicate the point source pollution is the pesticide, herbicides, animal waste, and irrigation. Option D is correct.
Point source pollution is defined by the United States Environmental Protection Agency as “any single specifiable source of pollution from which pollutants are discharged, such as a pipe, ditch, ship, or manufacturing smokestack.”
Point sources include factories and sewage treatment plants, oil spills, irrigation, fertilizers, pesticides, leaky underground storage tanks, drainage from industrial plants, etc.
Therefore, option D is correct.
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