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

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

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

Which of the following atmospheric layers contains the Ozone layer that protects Earth from harmful UV rays?

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

Which among the following layers of Earth's atmosphere contains the Ozone layer?