Match the gases in column-I with their source in column-II. Column-I Column- II (A) Nitrous oxide (N 2 O) (1) Secondary pollutant from car exhausts (B) Chlorofluorocarbons (CFCs) (2) Combustion of fossil fuels, wood, etc. (C) Methane (CH 4 ) (3) Denitrification (D) Ozone (O 3 ) (4) Refrigerators, aerosol, sprays (E) Carbon dioxide (CO 2 ) (5) Cattle dung and toilets

Question

Match the gases in column-I with their source in column-II. Column-I Column- II (A) Nitrous oxide (N 2 O) (1) Secondary pollutant from car exhausts (B) Chlorofluorocarbons (CFCs) (2) Combustion of fossil fuels, wood, etc. (C) Methane (CH 4 ) (3) Denitrification (D) Ozone (O 3 ) (4) Refrigerators, aerosol, sprays (E) Carbon dioxide (CO 2 ) (5) Cattle dung and toilets, A B C D E 3 4 5 1 2, A B C D E 5 1 3 4 2, A B C D E 4 5 1 2 3, A B C D E 1 3 4 5 2

MARKS App · Accepted Answer

Column I Column II Nitrous oxide (N 2 O) Denitrification Chlorofluorocarbons CFCs Refrigerators, aerosol, sprays Methane (CH 4 ) Cattle dung and toilets Ozone (O 3 ) Secondary pollutant from car exhausts Carbon dioxide (CO 2 ) Combustion of fossil fuels, wood, etc.

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	Column-I		Column- II
(A)	Nitrous oxide (N₂O)	(1)	Secondary pollutant from car exhausts
(B)	Chlorofluorocarbons (CFCs)	(2)	Combustion of fossil fuels, wood, etc.
(C)	Methane (CH₄)	(3)	Denitrification
(D)	Ozone (O₃)	(4)	Refrigerators, aerosol, sprays
(E)	Carbon dioxide (CO₂)	(5)	Cattle dung and toilets

Column I	Column II
Nitrous oxide (N₂O)	Denitrification
Chlorofluorocarbons CFCs	Refrigerators, aerosol, sprays
Methane (CH₄)	Cattle dung and toilets
Ozone (O₃)	Secondary pollutant from car exhausts
Carbon dioxide (CO₂)	Combustion of fossil fuels, wood, etc.