The ozone hole forms in an area that is receiving no UV-C from the Sun to make new ozone. If that area is receiving no UV-C, then it is receiving no UV-B either. So the effect on Earth's surface life due to a larger "ozone hole" is negligible. What makes the ozone larger is global ozone depletion, and that does have important consequence. See the question below.
There is no concern. We want the ozone layer thicker than at present. The ozone layer blocks dangerous ultraviolet radiation the causes skin cancers in humans and damages crops. Scientists hope the ozone layer will be completely restored by 2050.
CFC's and ozone layer combined is a concern. It is the problem because CFC's destroy the ozone to a great content.
The ozone layer is being depleted due to the continues usage to ozone depleting substances that is ODS. These ODS contain CFC which react with ozone present in the ozone layer and deplete it.
See "What is the ozone layer?"
The ozone layer is damaged by the continues usage of the CFC's. These CFC's decompose the ozone molecule and thus deplete it.
It can only get as big as where the Sun sends UV-C to make more ozone. There is evidence that the ozone layer may have been penetrated in a big way in the recent past, and Man is still here.
CFC's and ozone layer combined is a concern. It is the problem because CFC's destroy the ozone to a great content.
There is no hole in the ozone layer but the thinning of the layer. It is because of the continues use of CFC's by humans.
Ozone layer is destroyed by the continues use of CFCs. They react with ozone to decompose it and deplete the layer.
We can avoid the ozone layer from getting bigger. It can be done by planting trees.
The ozone layer is damaged by the continues usage of ozone depleting substances. These compounds have chlorine which react with ozone to deplete it.
Man has depleted the ozone layer. He has done this by continues usage of CFC's.
To save the ozone layer, we must:Plant more treesAvoid the use of CFC's.
The ozone layer protects us from UV rays. If it is not there, there will be no life on earth.
The ozone layer is under threat due to the continues use of CFCs. These CFC react with ozone and cause a number of problems.
The ozone layer is being depleted due to the continues usage to ozone depleting substances that is ODS. These ODS contain CFC which react with ozone present in the ozone layer and deplete it.
If the ozone layer depletes, harmful UV rays will enter the surface of earth. These are fatal for life on earth.
Yes, scientists know what is causing the ozone layer to disappear. It is the continues use of ozone depleting substances.