Nothing.
You say "ozone layer" in Spanish as "capa de ozono."
Ozone layer contains ozone in it. Therefore, it is named so.
Earth has a layer of ozone. It is present as the ozone layer.
Earth and Venus have a protective ozone layer. These planets have ozone molecules in ozone layer.
See "What is causing the depletion of the ozone layer?" in the "Related questions" section below.
You say "ozone layer" in Spanish as "capa de ozono."
Ozone layer is spread all over not just Australia. I think you mean to say ozone hole.
Ozone layer contains ozone in it. Therefore, it is named so.
ozone layer in Tagalog: ozone layer (no direct Tagalog translation)
Ozone layer is formed of ozone. It is a gas.
Earth has a layer of ozone. It is present as the ozone layer.
damage to ozone layer is called ozone depletion. It is thinning of ozone layer.
The layer of gases that surround the atmosphere is ozone. It is present as the ozone layer.
Ozone layer is the layer of ozone. Humans are altering it by CFC's.
The ozone layer is in the stratosphere. It is a pool of ozone molecules.
Earth and Venus have a protective ozone layer. These planets have ozone molecules in ozone layer.
In the ozone layer. Where the ozone is.