Question

'Thermal pollution' means dumping heat in an ecological system, like a lake or a pond. Thermal power plants have to throw some heat into a 'sink' because of they:

• A. get overheated
• B. have special anti-pollution laws
• C. follow the local sanitation laws
• D. follow the second natural law of thermodynamics

Answer 1

Answer: (A)

get overheated

Thermal pollution is the degradation of the quality of water due to a sudden change of its temperature. A primary source of thermal pollution is the discharge of heated water from the power plants. The unused heat, generally around $60$% of the input energy which is unable to be used in the process, is then returned to a sink, such as water.