Question

The two forms of oxygen found in the atmosphere are ------------------​

Answer 1

Answer:

The two forms of oxygen found in the atmosphere are: (i) Elemental oxygen is normally found in the form of diatomic molecule (O2) in the lower part of atmosphere. It is about 21% in the air and non-poisonous. (ii) Ozone is found in the stratophere part of atmosphere. It contains three atoms of oxygen (O3).

Answer 2

1. in the form of ozone
2. in the form of oxygen gas