A student lives in a home some few miles from a nearby coal crushing site. The vegetation and structures within the area have been covered by a layer of soot which has accumulated over the years.

A student lives in a home some few miles from a nearby coal crushing site. The vegetation and structures within the area have been covered by a layer of soot which has accumulated over the years. This can be considered as a

A) a primary pollutant
B) a secondary pollutant
C) a tertiary pollutant
D) none of the above

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