a
20%
b
30%
c
40%
d
50%
Answer and Detail: The correct answer is: 40%.
Detail: According to SAFAR (System of Air Quality and Weather Forecasting), farm fires (stubble burning) contributed to 40% of the pollution in Delhi. Farmers in nearby states burn crop residues to clear fields for the next planting season, releasing large amounts of smoke and particulate matter into the air.
Detail: According to SAFAR (System of Air Quality and Weather Forecasting), farm fires (stubble burning) contributed to 40% of the pollution in Delhi. Farmers in nearby states burn crop residues to clear fields for the next planting season, releasing large amounts of smoke and particulate matter into the air.
