Composition of Air Class 3 Worksheet
Composition of Air Class 3 Worksheet / Question and Answer for the students of State / CBSE / ICSE school boards by online shiksha
Q – What are the main gases present in the air?
Oxygen carbon dioxide and nitrogen are the main gases present in the air.
Q – What is pollution?
The presence of some harmful substance present in the air is called air pollution.
Q – What are pollutants?
Substances which make the air dirty are called pollutants.
Q – How can we keep the air clean?