Nitrous oxide is:
- also known as laughing gas
- colorless & non-flammable gas
- one of the pollutants to measure National Air Quality Index
- one of the greenhouse gases covered in Kyoto Protocol
Select the correct option from codes given below:
Nitrogen dioxide is one of the pollutants to measure the National Air Quality Index.
This question is a part of GKToday's Integrated IAS General Studies Module