The soil pollution is caused as the industrial furnaces throw:
Correct answer: C. Fly ash
- A. CFC, CH4 and SO2
- B. Sulphates of Na, Ca and Fe
- C. Fly ash
- D. All of these
Explanation
Fly ash is the fine particulate residue released when coal or other solid fuels are burned in industrial furnaces, and it can contaminate soil after deposition. CFCs and methane are gases, while the listed sulphates are not the standard answer for furnace emissions here.
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