Question

Q3. (a) Which constituents of the air make up to 1% of the total composition of air?

(b) Give an example where the air has mass.

Answer 1

(a) The constituents of the air: carbon dioxide, water vapour and dust particles make up to 1% of the total composition of the air.

(b) An inflated balloon has mass greater than an deflated balloon. It shows that the air inside an inflated balloon has mass.