# Among the gases (a) - (e),

Question:

Among the gases (a) - (e), the gases that cause greenhouse effect are :

(a) $\mathrm{CO}_{2}$

(b) $\mathrm{H}_{2} \mathrm{O}$

(c) $\mathrm{CFCs}$

(d) $\mathrm{O}_{2}$

(e) $\mathrm{O}_{3}$

1. (a), (b), (c) and (d)

2. (a), (c), (d) and (e)

3. (a) and (d)

4. (a), (b), (c) and (e)

Correct Option: , 4

Solution:

$\mathrm{CO}_{2}, \mathrm{H}_{2} \mathrm{O}, \mathrm{CFCs}$ and $\mathrm{O}_{3}$ are green house gases.