Question

80. Concentration of which of the following gases in atmosphere results in greenhouse gas effect?

1. Stratospheric Ozone

2. Water vapour

3.Hydro-Flouro Carbons

4. Methane

Options:

• A. a. 1, 2 and 4 only
• B. b. 2, 3 and 4 only
• C. c. 1, 2, 3 and 4
• D. d. 1 and 3 only

Answer 1

The correct option is B

b. 2, 3 and 4 only

B)

Tropospheric Ozone is a Green house gas whereas Stratospheric Ozone is not a Green house gas Water vapour traps radiation coming from land and thus increases temperature in the atmosphere thereforeit is a GHG.

Hydro-flouro Carbon and Methane are GHGs