NEET BIOLOGY

Detailed explanation-1: -Sources of water pollution can be grouped as point source pollution (large amounts entering through a single site) or nonpoint source pollution (small amounts entering from many sites.)

Detailed explanation-2: -Pollution can be grouped in two categories, point source and nonpoint source.

Detailed explanation-3: -Factories and sewage treatment plants are two common types of point sources. Factories, including oil refineries, pulp and paper mills, and chemical, electronics and automobile manufacturers, typically discharge one or more pollutants in their discharged waters (called effluents).

Detailed explanation-4: -Nonpoint Source Pollution is transported by the storm water system or other surface water flows to local streams and bays. In contrast, a particular ongoing discharge from a wastewater plant or industrial facility is considered a “point source” of water pollution.

Detailed explanation-5: -Point and Nonpoint Pollution Sources Pollution originating from a single, identifiable source, such as a discharge pipe from a factory or sewage plant, is called point-source pollution. Pollution that does not originate from a single source, or point, is called nonpoint-source pollution.