Oxygen is O2. Ozone is O3.
See "What is the ozone layer?"
The ozone layer consists of pool of ozone molecules. they are allotrope of oxygen molecule.
No oxygen is not a danger to ozone layer in stratosphere. It is because oxygen itself participates in the creation of ozone.
Ozone is created by the oxygen molecules. When the UV falls on oxygen, ozone is formed.
Uranus does not have a ozone layer. It does not have a oxygen and no UV radiation to convert it into ozone.
The ozone layer is broken down by UV. It decomposes it into nascent oxygen and oxygen molecule.
Ozone layer is formed by UV radiations. These UV rays decompose oxygen to 2 nascent oxygen which reacts with oxygen to form ozone.
Ozone layer is made up of ozone. It is an allotrope of oxygen.
The layer containing ozone gas in the stratosphere region of the earth is known as ozone layer. Ozone is the triatomic form of oxygen.
Ozone element is in danger. It is present as ozone layer.
Oxygen diffuses in and out of the ozone layer, and ozone decays back to oxygen. So any oxygen lost is made up... usually from the troposphere (and its nearby plants).
Ozone is in upper. It is because it is formed there.