Question : Which of the following is not a greenhouse gas?

Option 1: Nitrogen

Option 2: Methane

Option 3: Carbon dioxide

Option 4: Nitrous oxide

Question : 'Greenhouse effect' means

Option 1: Cultivation of crops in a greenhouse to conserve heat

Option 2: Trapping of solar energy due to carbon dioxide gases

Option 3: Trapping of solar energy by the Earth's upper surface

Option 4: Increase of heat due to atmospheric pollution

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 : 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