Question

7. is heavier than and gases present in the air but it does not form the lower

layer of the atmosphere. Explain.

Answer 1

The only reason I feel this doesn't happen is the concentration of carbon dioxide being 0.1% and the concentration of nitrogen and oxygen being much higher. But this doesn't seem to be the answer to this question. I tried to 'google' it but couldn't find anything substantial or satisfactory there. It would be great if someone could help.

Answer 2

ask someone for Explanation: