A.Nitrous oxide
B.Carbon monoxide
C.Helium
D.Neon
Related Mcqs:
- Which of the following gas has least proportion in atmospheric air?
- Which of the following constituent of air has the least percentage?
- Which pollutants result from automobile exhaust?
- A blue smoke from a diesel engine indicates presence of
- What are the chief pollutants of the atmosphere which are most likely to deplete the ozone layer??
- Which of the following chemicals is responsible for the depletion of ozone layer in the atmosphere?
- Which of the following is usually not an air pollutant?
- Which emission has generally least proportion from a diesel engine as compared to a petrol engine?
- The major constituent of natural gas is
- Atmospheric ozone layer which protect us from UV-B and C is getting depleted most by addition of __________?
