Question

List two forms of 0 found in atmosphere 2

Answer 1

O-8-mass no.16
O-9-mass no.17

Answer 2

do you need oxygen????
well oxygen is found in 3 States
1. in the form of O2
2. in the form of O , when it react with ultraviolet rays
3. when single atoms of oxygen reacts with O2, its forms ozone