How to Protect Our Planet?

The first step is to learn about environmental problems. The cause of many problems is pollution. Plants and factories which produce things we need also pollute the air with poisonous gases, such as carbon dioxide. They also produce gases and substances which destroy the ozone layer of the atmosphere. It is dangerous, because this ozone layer protects the Earth from the space radiation. We can help keep this ozone layer, if we use ozone-friendly substances and sprays.