The pollution that enters water source directly through a pipe or other discharge outlet is called point source pollution.
Step-by-step explanation:
The pollution is nothing but the entry of non-soluble materials which harm the environment by disturbing its stability.
The pollution is caused by pollutants which can be classified as point source pollution and non point source pollution.
If the pollutant causing a particular kind of pollution can be identified like wastage through pipe entering the water bodies or chemical wastage from factories are termed as point source pollution and the pollutants which can be identified are termed as non point source pollution.