Read the book under the moon "this novel, I think we're going to learn characters brave spirit. I also know that the ozone layer is very important, we must protect the earth, will protect the ozone layer, reduce emissions of freon.
If have no the ozone layer, the earth will become? We can't even imagine. So we're going to driving less less air conditioning, less contain CFCS products, buy no radiation of household electrical appliances and so on. In order to our earth and to ourselves, please protect the ozone layer. I hope that through our efforts, let no longer empty expand, make the earth more beautiful!