Question

Under Column-I, a list of gases that are known to have a greenhouse effect is given. Relate them to their main source selecting from the list given under Column-II.

Column-I	Column-II
A. Nitrous oxide	1. Secondary pollutant from car exhausts
B. Chlorofluorocarbon (CFCs)	2. Combustion of fossil fuels, wood, etc.
C. Methane	3. Denitrification
D. Ozone $\left(O_3\right)$	4. Refrigerators, aerosol, sprays
E. Carbon dioxide	5. Cattle, rice fields, toilets

• A. A-3, B-4, C-5, D-1, E-2
• B. A-5, B-1, C-3, D-4, E-2
• C. A-4, B-5, C-1, D-2, E-3
• D. A-1, B-3, C-4, D-5, E-2

Answer 1

The correct option is A A-3, B-4, C-5, D-1, E-2

These are the process/source for the various green house gases:
A. Nitrous oxide -Denitrification
B. Chlorofluorocarbon (CFCs)- Refrigerators, aerosol, sprays
C. Methane - Cattle, rice fields, toilets
D. Ozone $\left(O_3\right)$ - Secondary pollutant from car exhausts
E. Carbon dioxide - Combustion of fossil fuels, wood, etc.