Flyash pollution is caused by
Correct Answer : c ) Thermal power plantExplanation :
Fly ash is a by-product of the coal combustion process in thermal power plants. The ash level of low-grade coal utilized in thermal power generation ranges from 30-45%.
The imported high-grade coal has a low ash level of 10-15%.
Because most of the coal used in thermal plants is low-grade, it produces a considerable amount of ash, which requires a wide area for disposal as a landfill or pond.
Hence, option (c) is correct.