Which is not a natural source of air pollution?
Correct answer: B. Coal fire
- A. Forest fire
- B. Coal fire
- C. Volcanoes
- D. Dust storm
Explanation
While forest fires, volcanic eruptions, and dust storms are all natural events that release pollutants into the atmosphere, the burning of coal is an anthropogenic (human-caused) activity and is not a natural source of pollution.
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About Environmental Chemistry
Atmospheric pollution includes smog, acid rain, greenhouse gases, ozone depletion and the effects of carbon monoxide, sulfur oxides, nitrogen oxides and particulate matter. Water pollution covers sewage, industrial waste, eutrophication and treatment stages, while green chemistry focuses on reducing hazardous substances, waste and energy use through safer, more efficient processes.
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