Supply the missing word from these in brackets:
- N2 and O2 are present in ____. (Troposphere, Mesosphere)
- Atmospheric pressure with ____ increase of altitude (increases, decreases)
- Ozone is an ____ of oxygen. (isotope, allotrope)
- N2 and O2 ____ solar radiations on the earth. (allow, do not allow)
- N2 and O2 are present in the Troposphere.
- Atmospheric pressure with decreases increases in altitude.
- Ozone is an allotrope of oxygen.
- N2 and O2 do not allow solar radiation on the earth.