The man made objects in ozone layer are CFC's. They are harmful to ozone.
Ozone layer depletion is the reduction in ozone layer. It is due to man made ODS.
ozone layer disappears due to man made chemicals. These are CFC's that damage the ozone layer.
Ozone layer is a layer of ozone molecules. It is destroyed by man made CFC's.
We have affected ozone layer by CFC's. These are man made chemicals that destroy ozone.
The ozone layer is depleted by man made CFC gases. They react with ozone.
CFC's are man made chemicals. They destroy the ozone layer.
The ozone layer is depleting. It is mainly due to man made CFC's.
The thinning of ozone layer is mainly due to man made ozone depleting substances. They react with ozone and decompose it.
Ozone hole is created by natural and man made processes. Man made are CFC's.
Man made pollutants are many. But the one destroying ozone is CFC.
No, the aliens did not blow hole in ozone layer. It is by man made processes.
Depletion is the thinning of ozone layer. It is due to man made CFC's.