High School

Select the best answer for the question.

13. Which of the following is an example of point-source pollution?

A. Acid from abandoned mines
B. Fertilizer from agricultural runoff
C. Water from a sewage treatment plant
D. Salt from roads

Answer :

Final answer:

Point-source pollution comes from a single, identifiable source. In this question, the best answer is water from a sewage treatment plant, as it clearly represents a point of discharge for pollutants. Other examples of point-source pollution include factory discharge pipes and sewer system outfalls.


Explanation:

Understanding Point-Source Pollution

Point-source pollution refers to contaminants that enter the environment from a single, identifiable source. In the question regarding examples of point-source pollution, the correct answer is:

  • C. Water from a sewage treatment plant

This represents a clear point of discharge for pollutants. It is in contrast to nonpoint source pollution, where pollutants originate from multiple sources spread over a wide area, like runoff from agricultural fields.

Other examples of point-source pollution include:

  1. Pipes from factories discharging waste into water bodies.
  2. Effluents from waste treatment facilities.
  3. Outfalls from sewer systems during heavy rain events, where untreated waste may overflow into nearby waters.

In summary, point-source pollution is easily traceable, which differentiates it from less definable, widespread nonpoint sources.


Learn more about point-source pollution here:

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