Answer: D. Pesticide runoff from farm fields.
Explanation:
The non-point source pollution is caused by the pollutant whose source of origin is unknown.
The pesticide runoff from farm fields is the correct option. This is because of the fact that water will take away along with it pesticides from field and mix it with the freshwater source. This way the source of pollutant pesticide will remain undetermined.
Option (d) is correct. The pesticide runoff from the farm fields is a non-point source of freshwater pollution.
Further Explanation:
Point source pollution
Pollution or wastage coming from a single point or activity is called the point source pollution.
For example: Wastage coming from the activities in a factory or sewage treatment plant is the example of the point source pollution.
Similarly leaking toxic waste and the factory waste are the examples of the point source pollution.
Non-point source pollution
The wastage resulting from many activities or diffuse sources such as precipitation, drainage, land runoff and other mixed sources is called non-point source pollution.
Wastage coming from daily life activities of humans or animals is an example of non point source pollution.
Similarly the runoff of pesticide from farm fields is an example of non-point source pollution.
Therefore, option (d) is the correct answer. The pesticide runoff from the farm fields is a non-point source of freshwater pollution.
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Answer Details:
Grade: College
Subject: Physics
Chapter: water education
Keywords:
Pesticide, run off, farm fields, non point source, fresh water, pollution, sewage treatment plant, leaking, toxic, waste landfill, factory waste, piled, stream, point source pollution.
