They aren't.
To help the ozone layer, we can reduce our use of harmful chemicals like CFCs, use eco-friendly products, and support policies that protect the ozone layer.
In order to protect the ozone layer, we have to minimize the use of CFC's. These CFC's react with ozone in the ozone layer and deplete it.
Polymers themselves do not help protect the ozone layer. Some of the solvents in processing the polymers do serve to produce ground level ozone. However, when you consider what the polymers are replacing, there is some beneficial use: wood, metal. Woods require cutting down trees, which can reduce available oxygen (all else being equal), whcih will eventually reduce the amount of ozone in the ozone layer. Metals are smelted using much more fossil fuel than is required to process polymers. Combustion processes add water vapor to the air and reduce available oxygen, both of which reduce ozone concentrations. Additionally, producing polymers ties up fossil fuels that would otherwise be burned... or turned into "face cream". And they can be recycled.
To protect the ozone layer, minimize the use of CFC's. They react with ozone to deplete it.
Ozone layer is depleting. We need to protect it.
You want to protect ozone layer. It is a hell precious layer for us.
We have to protect the ozone layer to allow human existence. This existence of ozone is the reason behind human survival.
People can protect ozone layer by stopping use of CFC's. These compounds deplete ozone.
To protect the ozone layer we must:Plant more treesstop use of CFC's.
We msut protect the ozone layer. For this we should not use CFC products.
The ozone layer protect us. It is a magical layer.
We can protect the ozone layer by curbing the use of harmful compounds called CFC's. These CFc's play a vital part in destroying and depleting ozone layer.