Thermal Pollution is the introduction of heat into water from what source?

Thermal Pollution is the introduction of heat into water from what source?

• A. Sediments
• B. Heat From Power Plants Harms Species
• C. Major Water Pollutants
• D. Toxic Chemicals

Answer: (B)

Thermal pollution is about heat being added to a water body, changing its temperature and affecting aquatic life. The heat most often comes from power plants that use water to cool their systems and then discharge that heated water back into rivers or lakes. Warmer water holds less dissolved oxygen and raises metabolic rates of organisms, stressing sensitive species and altering the ecosystem. This makes heat from power plants the best answer, because it identifies the source of the heat itself. Other options describe substances or materials that pollute water, not heat, so they don’t explain why the water temperature rises.

Thermal pollution is about heat being added to a water body, changing its temperature and affecting aquatic life. The heat most often comes from power plants that use water to cool their systems and then discharge that heated water back into rivers or lakes. Warmer water holds less dissolved oxygen and raises metabolic rates of organisms, stressing sensitive species and altering the ecosystem. This makes heat from power plants the best answer, because it identifies the source of the heat itself. Other options describe substances or materials that pollute water, not heat, so they don’t explain why the water temperature rises.