In almost all Indian metropolitan cities like Delhi, the major atmospheric pollutant(s) is or are

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Suspended particulate matter (SPM)

Oxides of Sulphur

Carbon dioxide and carbon monoxide

Oxides of nitrogen

answer is A.

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Detailed Solution

Concept- Particulate count is often one of the main types of air pollution in the majority of Indian cities. Ozone, peroxyacetyl nitrate, oxides of nitrogen, and gradually released hydrocarbons from automobiles are the main components of photochemical smog.
Since particle count is a significant air contaminant, particulate dependency is typically divided into settleable and suspended types.
Suspended particulate matter (SPM)is the main atmospheric pollutant in practically all Indian large cities, including Delhi. These are thinly separated particles or liquids that may be released into the air by combustion processes, commercial operations, or naturally occurring resources.
Hence, the right answer is option (1).

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