Most ozone gas (about 90%) is located in the atmospheric layer of

The protective Ozone Layer is predominantly located in which atmospheric layer of Earth?

The maximum concentration of Ozone gas is found in which atmospheric layer?

In which layer of the Earth's atmosphere is the concentration of ozone gas maximum?

The thickness of ozone layer from base to top of atmosphere is measured in :

In the vertical structure of the atmosphere, which one is the lowest layer?