UGC NET Questions (Paper – 1)

Non-point source pollution comes from many small, diffuse sources spread over a landscape rather than a single discharge point. Agricultural fields treated with fertilisers and pesticides generate runoff during rainfall that carries chemicals into streams and rivers, making it hard to attribute pollution to any one farm.

Option A:
Option A is correct because it involves numerous fields contributing pollutants in a widespread way, which is characteristic of non-point source pollution.

Option B:
Option B is incorrect since a factory outfall pipe is a classic point source with a clearly identifiable location and discharge.

Option C:
Option C is incorrect because a sewage treatment plant outlet is also a discrete point source, even if the effluent is inadequately treated.

Option D:
Option D is incorrect as a thermal power plant outfall is a specific, regulated point source, not diffuse pollution from many locations.