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Which industries release particulate air pollutants along with harmless gases, such as nitrogen, oxygen, etc.?

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in Biology – Class 12 by (271k points)
Which industries release particulate air pollutants along with harmless gases, such as nitrogen, oxygen, etc.?

(a) Oil industry

(b) Invitro Fertilization clinics

(c) Plant tissue culture labs

(d) Thermal power plants and smelters

The question was posed to me in semester exam.

Enquiry is from Environmental Issues in division Environmental Issues of Biology – Class 12

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Right option is (d) Thermal power plants and smelters

The explanation is: The thermal power plants and smelters release smokestacks. These smokestacks contain particulate matter and various gases containing air pollutants along with harmless gases, such as nitrogen, oxygen, etc.

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