The earth has only one ozone layer. It is present in the stratosphere.
Yes It does it has 1
Ozone is not an element. It is an allotrope of oxygen.
There is no such plural
CFC's have destroyed the ozone. They react with ozone to deplete it.
Yes, it is. Chlorine reacts with ozone in the form of CFC's.
No. CFC's are chlorofluorocarbons and cause damage to ozone (O3).
The ozone hole is located over Antarctica. It is quite big in size.
See "What can we do to protect the ozone layer?" in the "Related questions" section below.
To prevent ozone hurting people, CFC's must be banned. They are the ones that deplete ozone.
We don't want to protect the depletion of ozone, we want to protect the ozone layer. See the related question below.
The ozone absorption of UV rays maintain a ozone cycle. This ozone cycle is maintained by sun's rays.
Ozone present in the troposphere is also called as bad ozone. It is also a green house gas. It is the major constituent of the urban smog.