A topsoil may undergo a depletion.Logical formLearned from2 sentences. A success of a craft may lead to a depletion of trees.Logical formLearned from2 sentences. Students may undergo a depletion.Logical formLearned from2 sentences. (Petroleum resources) may undergo a depletion.Logical formLearned from2 sentences. Methane may undergo a depletion.Logical formLearned from2 sentences. Chlorofluorocarbons may contribute to (ozone depletion).Logical formLearned from2 sentences. Concerns can be about depletion of an (ozone layer).Logical formLearned from2 sentences. (Adenine nucleotides) may undergo a depletion.Logical formLearned from2 sentences. Ergosterol may undergo a depletion.Logical formLearned from2 sentences. A (depletion region) may widen.Logical formLearned from2 sentences. A width may pertain-to a (depletion zone).Logical formLearned from2 sentences. (Stock depletion) can be constituted-of-or-filled-with whales.Logical formLearned from2 sentences. Vesicles may undergo a depletion.Logical formLearned from2 sentences. Concerns can be constituted-of-or-filled-with (ozone depletion).Logical formLearned from2 sentences. Zones can be constituted-of-or-filled-with depletion.Logical formLearned from2 sentences.