NCERT 6th Class (CBSE) Science: Air Around Us – Quiz
22 Multiple Choice Questions related to NCERT 6th Class (CBSE) Science: Air Around Us – Quiz:
- Air is mixture of nitrogen, oxygen, carbon dioxide, water vapour and a few other gases. Some dust particles may also be present in it.
- Air contains oxygen and nitrogen as its major constituents of air. These gases retain their properties in air. So the air is called a mixture.
- It is because carbon-dioxide does not support combustion. When sprayed on burning object it stops the supply of oxygen and extinguishes fire.