No. of things are being done. Trees are planted on earth.
We know that the ozone depletion is caused by CFC's. To prevent depletion, CFC's are banned.
In order to control the ozone depletion, we must curb the use of CFC's. Planting trees will also help to the cause.
The ozone depletion can be reduced by eliminating the root cause. The root cause is the use of CFC's.
In order to stop the ozone depletion, the use of CFC's has been banned. These CFC deplete the ozone by decomposing it.
To avoid the depletion of good ozone, we must:Plant more treesAVoid the use of CFC's.
It is done by man made chemicals. The chemicals are also called miracle compounds.
The ozone layer is being protected. It is done by spreading awareness.
There are many ways to reduce ozone depletion like:Less use of CFC'SCFC'S produced by refrigerators,air conditioners,etc...
See "What is depleting the ozone layer?" in the "Related questions" section below. "What" is depleting the ozone layer describes "How" it is depleted.
To reduce ozone depletion, we must stop the use of CFC's. They react with ozone to deplete it.
The ozone hole, and its size varies by time of year. No point in answering that part of the question.As to what is being done to prevent ozone layer depletion, we are asking silly questions on the internet. So far we have banned CFCs, which have been shown to deplete ozone (Nature also makes some, but we cannot fine Her). We still fly aircraft high in the atmosphere, even though we know this also depletes ozone. Other than that, we thump our chests, and point fingers elsewhere...
Ozone depletion causes increase in temperature of the earth. It is harmful for the survival of life on earth.