Question

What are the sources of water?

Answer 1

• Water is one of the main and the most essential substances for the existence of life.
• It is known as the source of life as no living being could survive without water.

There are three main sources of water that are given below:

Rainwater:

• It is the primary source of water.
• It is because of rain that all water bodies maintain their water levels.
• Rainwater is formed by the evaporation of water from the earth's surface, followed by condensation.
• It contains impurities such as dissolved gases and dust particles.

Surface water:

• It comprises of all the water bodies such as oceans, lakes, seas, rivers present on the surface of earth.
• Water in oceans and seas is impure and salty.
• The process of removal of salt from seawater is called desalination.

Groundwater:

• A part of rainwater which percolates down through the rocky layer and gets collected underground is called groundwater.
• It is drawn up through wells, tube wells, and bore wells.
• It contains soluble impurities.
• Groundwater supplements the demand for water during summer.