The ozone layer is mainly found in which part of the atmosphere?

Which gas is primarily responsible for the depletion of the ozone layer?

The ozone molecule is made up of how many oxygen atoms?

The largest ozone hole is generally observed over which region?

Which form of UV radiation is mostly blocked by the ozone layer?

Ozone depletion can lead to which health problem in humans?

The unit used to measure the thickness of the ozone layer is:

Which of the following is an ozone-friendly refrigerant?

Which natural event can temporarily reduce ozone concentrations?

Ozone acts as a protective shield primarily by absorbing: