Question : The most serious air pollutant causing health harzard is:

Option 1: Sulphur dioxide

Option 2: Carbon monoxide

Option 3: Ozone

Option 4: Nitrogen oxide

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 : Chemobyl disaster is the result of pollution by

Option 1: Oil spill

Option 2: Acid rain

Option 3: Carbon dioxide

Option 4: Radioactive waste

Question : Global warming is mainly due to the accumulation of Which of the following?

Option 1: Oxides of Nitrogen

Option 2: Oxides of Sulphur

Option 3: Carbon Dioxide

Option 4: Carbon monoxide

Question : What is dry ice?

Option 1: Solid Carbon dioxide

Option 2: Solid Nitrogen dioxide

Option 3: Solid Sulphur dioxide

Option 4: Solid water