Hi Aspirant,

Groundwater is stored in large aquifers and must be drained out of the ground after digging a deep well. In lakes, rivers and streams, the intake of surface water is drawn into the public water system.

Surface water is found in a river, lake or other land. Water is not very high in mineral content, and is sometimes referred to as soft water even though it may not be.

Groundwater is water trapped in or around a subsurface layer of soil or rock. There are many ways in which groundwater sources can be refilled, including rain that soaks in the soil, rivers disappearing underground and melting snow.

The sources of water degradation are acid rain, sewage and wastewater, oil pollutants, toxic waste, dumping, etc. or you can say that these are the main factors responsible for water pollution.

Thank you