Phanerozoic Earth History

Key Questions

  • Ozone is formed by the reaction of a oxygen molecule with a oxygen atom due to high UV radiation
    #3O_2rightleftharpoons2O_3#
    process is as
    #O_2->2O#(1)due to the energy of #UV#rays
    #2O_2+2Orightleftharpoons2O_3#(2)
    (1)-(2)
    #3O_2rightleftharpoons2O_3#
    It is imprtant for the life at higher altitudes as the it absorbs the UV rays and dont allow them to fall on earth
    at lower altitudes ozone is a harmful gas to the life on earth

Questions