Answer:
Ozone
Explanation:
Ozone is considered a pollutant in the troposphere, but in the stratosphere it is essential to life on earth because it absorbs biologically harmful UV radiation. The mesosphere and the thermosphere are two additional atmospheric layers above the stratosphere.
Answer:
plasma membrane/ cell membrane
The can survive fr a long period of time outside a persons body.
From nucleic acid to amino acid apex i think