Question : Which gas does not form the part of atmosphere?

Option 1: Nitrogen

Option 2: Hydrogen

Option 3: Chlorine

Option 4: Carbon dioxide

Question : What is the correct percentage by volume of various gases in Earth's atmosphere?

Option 1: 20.95% nitrogen, 78.09% oxygen and 0.04% carbon dioxide and other greenhouse gases

Option 2: 10.95% nitrogen, 88.09% oxygen and 0.09% carbon dioxide and other greenhouse gases

Option 3: 10.95% nitrogen, 78.09% oxygen and 0.03% carbon dioxide and other greenhouse gases

Option 4: 78% nitrogen, 21% oxygen and 0.03% carbon dioxide and other greenhouse gases

Question : Which of the following gases is most toxic ?

Option 1: Carbon dioxide

Option 2: Carbon monoxide

Option 3: Sulphur dioxide

Option 4: Chlorine

Question : Which of the following is NOT a primary greenhouse gas in the earth's atmosphere?

Option 1: Methane 

Option 2: Ozone 

Option 3: Nitrous oxide 

Option 4: Hydrogen 

Question : The major harmful gas emitted by automobile vehicle which causes air pollution is

Option 1: Carbon monoxide

Option 2: Methane

Option 3: Carbon dioxide

Option 4: Ozone gas