Multiple choice

What is the principal reason for the thermal pollution in different water bodies?

  1. Decay in plants and animals in swamp deep ponds or lakes

  2. Wastes from petro-chemical industry

  3. Domestic sewage and animal waste

  4. Release of hot water from industry/power plant

  5. Agricultural run-off

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Thermal pollution refers to the change in normal temperature of water that degrades the quality of water. This change in temperature may be in upward or downward directions. The main reason behind this is our industry/power plant where water is used as cooling agent. After the water is used as cooling agent, it returned back to the environment at a higher temperature that has an adverse affects on ecosystem of water bodies.