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What is one major cause of air pollution?

Answer and explanation

Correct answer: Smoke released from vehicles and industries

The governing concept is that air pollution occurs when harmful gases, smoke, or particulate matter enter the atmosphere in quantities that reduce air quality. Vehicles burn petrol or diesel, while industries often burn coal, oil, or gas; these processes release smoke, carbon monoxide, nitrogen oxides, sulphur dioxide, and fine particles. Thus, option A correctly identifies a major human source of air pollution. Tree plantation generally helps absorb carbon dioxide and trap some particles, rainwater harvesting concerns water conservation, and organic farming reduces dependence on synthetic chemicals. The key link to remember is fuel combustion followed by harmful emissions.

Related tags

Air PollutionVehicle EmissionsIndustrial PollutionEnvironmental DegradationRainwater HarvestingWater ResourcesGeographyClass 12 Mcq

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