Question

which gas at different level of the atmosphere acts as an enemy and a friend to life on earth ​

Answer 1

Explanation:

Ozone near the earth's surface act as a dangerous gas.

where is ozone in the atmosphere up earlier act as a severe for us because it reflect the harmful UV rays of sun from the outer covering of earth atmosphere.

please mark my answer brainleast

Answer 2

Answer:

Carbon dioxide acts as an enemy as it leads to global warming.

And Ozone gas layer acts as a friend as it protects earth from ultraviolet rays of sun.