The ozone layer is the part of the Earth’s atmosphere that has the most ozone in it. The ozone layer protects living things from the harmful radiation of the sun.
N-SING
The ozone layer is the part of the Earth’s atmosphere that has the most ozone in it. The ozone layer protects living things from the harmful radiation of the sun.
N-SING
Collins COBUILD Advanced Learner's English Dictionary. Английский словарь Коллинз COBUILD для изучающих язык на продвинутом уровне. 2006