Q 11: Which gas is not produced photochemical smog?
(a) Paroxyacetyl Nitrate
(b) Nitrogen Oxide
Q 12: Which gas is known as strangulating gas?
(b) CO (Carbon Monoxide)
Ans: CO (Carbon Monoxide)
Q 13: In the Stratosphere layer of environment, which is present?
Q 14: When the Central Ganga Authority established?
Q 15: What is the reason for Black foot disease?
Q 16: According to W.H.O., what should be the pH of drinking water?
Q 17: Which gas has the highest percentage of Biogas?
Q 18: When Central Soil Conservation Board is established?
Q 19: Which state is popular as the state of the tiger?
(b) Madya Pradesh
Ans: Madya Pradesh
Q 20: Where are found, Asiatic Lion?
(a) Gir Forest
Ans: Gir Forest