Point source pollution example – UGC NET Question

Point source pollution originates from a single identifiable source such as a pipe,outfall or chimney. The stem describes effluent entering a river from a specific pipe,which fits this definition exactly. Therefore it is correctly classified as point source pollution.

Option A:
Non point source pollution arises from many dispersed sources like agricultural runoff or urban stormwater. It is difficult to trace to a single discharge point. Since the question mentions one pipe,non point is not accurate.

Option B:
Point sources are typically easier to monitor and regulate because their location and discharge characteristics can be precisely identified. Industrial pipes and sewage outlets are classic examples. This explanation matches the scenario described in the stem.

Option C:
Diffuse pollution is another term used for non point pollution,emphasising its widespread and scattered nature. It does not apply when a single clearly defined outlet is involved. Hence it is not the correct answer here.

Option D:
Natural sources such as soil erosion or volcanic activity can introduce materials into water bodies,but the stem specifically mentions industrial effluent. Therefore natural is not an appropriate classification.