Question : Which of the following atmospheric gases constitute greenhouse gases?

a. Carbon dioxide

b. Nitrogen

c. Nitrous oxide

d. Water vapour

Select the correct answer using the codes given below:

Option 1: a, c and d

Option 2: a and d

Option 3: a and c

Option 4: a, b and d

Question : Which of the following can not act as a bleaching agent?

Option 1: Hydrogen peroxide

Option 2: Nitrous oxide

Option 3: Chlorine

Option 4: Sulphur dioxide

Question : Which one out of the following helps in burning?

Option 1: Oxygen

Option 2: Carbon monoxide

Option 3: Nitrogen

Option 4: Carbon dioxide

Question : The highest volume of gases in the lower atmosphere is comprised of

Option 1: Hydrogen

Option 2: Carbon dioxide

Option 3: Oxygen

Option 4: Nitrogen

Question : Ocean acidification is the ongoing decrease in the pH of the Earth's oceans, caused by the uptake of __________from the atmosphere.

Option 1: methane

Option 2: carbon dioxide

Option 3: nitrogen

Option 4: argon