Countries have done many efforts. They have signed a MONTREAL PROTOCOL too.
To protect ozone, we have to curb CFC's. They react with ozone to deplete it.
See "What can we do to protect the ozone layer?" in the "Related questions" section below
We can avoid the ozone layer from getting bigger. It can be done by planting trees.
We could prevent the ozone layer from being totally destroyed. It can be done by planting trees as they protect us.
See "What can we do to protect the ozone layer?" in the "Related questions" section below.
Yes, it has. The governments have banned the CFC's.
The ozone layer can be protected. It can be done so by avoiding CFC's.
You can individually participate in protecting the earth. This can be done by stopping personal use of ODS.
Reduction of Uv rays can only be done by the ozone layer. Thus if we make steps to protect the ozone layer, there will be reduction of uv rays entering the earth.
Ozone layer needs to be replenished. It is because of its destruction.
See "What can we do to protect the ozone layer?" in the "Related questions" section below.
To protect ozone , CFC's are being curbed. They are the ones that deplete ozone.