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ozone layer (a region of the stratosphere)▼◼◼◼noun[UK: ˈəʊ.zəʊn ˈleɪə(r)] [US: ˈoˌzoʊn ˈleɪər]
ozonosphere▼noun[UK: ˈəʊzənˌɒsfiə] [US: ˈoʊzənˌɑːsfɪr]
ozone depletion▼◼◼◼noun
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