A. CFC, CH4 and SO2
B. Sulphates of Na, Ca and Fe
C. Fly ash
D. All of these
Correct Answer: Fly ash ✔
Last Updated: May 23, 2024
A. CFC, CH4 and SO2
B. Sulphates of Na, Ca and Fe
C. Fly ash
D. All of these
Correct Answer: Fly ash ✔
Last Updated: May 23, 2024