NEET BIOLOGY

Detailed explanation-1: -Water pollution is the contamination of water sources by substances which make the water unusable for drinking, cooking, cleaning, swimming, and other activities. Pollutants include chemicals, trash, bacteria, and parasites.

Detailed explanation-2: -Pollutants are biodegradable or non-biodegradable substances that can cause pollution. Pollution is the addition of any such constituent to air, water or land which deteriorates the natural quality of the environment.

Detailed explanation-3: -Water pollution occurs when harmful substances-often chemicals or microorganisms-contaminate a stream, river, lake, ocean, aquifer, or other body of water, degrading water quality and rendering it toxic to humans or the environment. This widespread problem of water pollution is jeopardizing our health.

Detailed explanation-4: -Water pollution (or aquatic pollution) is the contamination of water bodies, usually as a result of human activities, so that it negatively affects its uses. Water bodies include lakes, rivers, oceans, aquifers, reservoirs and groundwater.

Detailed explanation-5: -Sewage, industrial wastes, and tertilizers or pesticides.