関連ワード:
why is there a hole in the ozone above australia why is there a hole in the ozone over australia why is there a hole in the ozone layer over australia is there still a hole in the ozone over australia is there still a hole in the ozone layer above australia why is the hole in the ozone over australia is there a hole in the atmosphere over australia what is an ozone hole is there a hole above australia is there less ozone in australia
