What is water pollution? List its three causes.

Water pollution is the contamination of water bodies like rivers, lakes, and oceans with harmful substances.

It makes water unsafe for drinking, bathing, and other uses. Polluted water harms aquatic life, spreads diseases, and damages the environment.

Causes of Water Pollution:

• Industrial waste – Chemicals and heavy metals dumped into rivers.
• Sewage and domestic waste – Untreated human waste entering water bodies.
• Agricultural runoff – Fertilizers and pesticides washed into rivers and lakes.