Point source pollutants are best described as: A. Pollutants, such as mercury, that can be traced to a single source, such as a pipe.
B. Pollutants that enter the river as acid rain.
C. Pollutants, such as DDT, that can be traced to many sources.
D. Pollutants that enter rivers as rainwater flows across the land.
Point source pollutants are best described as:
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The correct answer is: A. Pollutants, such as mercury, that can be traced to a single source, such as a pipe.
Explanation: Point source pollutants are specific contaminants that originate from a distinct, identifiable source, such as a discharge pipe from a factory. This means they can be directly monitored and controlled, allowing for easier management and regulation compared to non-point source pollutants, which come from multiple, diffuse sources.