Carbon dioxide is heavier than oxygen and nitrogen but it does not form the lower layer of the atmosophere. Exoplain.

Carbon dioxide is heavier than oxygen and nitrogen but it does not form the lower layer of the atmosphere. Explain.

(a) Solids are generally very heavy while gases are light. Explain. (b) Carbon dioxide gas is heavier than both nitrogen and oxygen. Why does not it form lower layer in the atmosphere ?

Carbon dioxide is a mixture of carbon and oxygen.

Carbon dioxide, oxygen, sulpur dioxide, nitrogen dioxide.

How does oxygen and carbon dioxide remain nearly constant in the atmosphere?

State the importance of oxygen and carbon dioxide.

Nitrogen dioxide is reduced to nitrogen and oxygen in presence of finely divided :

___________ contain carbon , oxygen and nitrogen.