Question

Match the following air pollutants with their respective sources.

a.	Oxides of sulphur	1.	Pesticides, pints, laboratory.
b.	Mercury	2.	Petroleum industry wastewater treatment, oil refineries, etc.
c.	Hydrogen Sulfide	3.	Glass and ceramics, cement factories, aluminium industry, fertilizer industry etc.
d.	Fluorides	4.	Power house, smelters, coal and other fossil fuel combustion, etc.

1. a - 4, b - 1, c - 2, d - 3
2. a - 1, b - 4, c - 2, d - 3
3. a - 4, b - 1, c - 3, d - 2
4. a - 1, b - 4, c - 3, d - 2

Answer 1

Correct Answer - Option 1 : a - 4, b - 1, c - 2, d - 3

Concept:

Air pollutants with their respective sources are as follows:

Pollutant	Common Sources
carbon monoxide (CO)	automobile emissions, fires, industrial processes
nitrogen oxides (NO and NO2)	automobile emissions, electricity generation, industrial processes
sulfur dioxide (SO2)	Electricity generation, fossil-fuel combustion, industrial processes, automobile emissions
ozone (O3)	nitrogen oxides (NOx) and volatile organic compounds (VOCs) from industrial and automobile emissions, gasoline vapors, chemical solvents, and electrical utilities
Hydrogen Sulfide	Petroleum industry wastewater treatment, oil refineries, etc.
particulate matter	sources of primary particles include fires, smokestacks, construction sites, and unpaved roads; sources of secondary particles include reactions between gaseous chemicals emitted by power plants and automobiles
Fluorides	Glass and ceramics, cement factories, aluminum industry, fertilizer industry, etc.
lead (Pb)	metal processing, waste incineration, fossil-fuel combustion
Mercury	Pesticides, pints, laboratory