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Defenition of the word acid rain

    • Defenition of the word acid rain

      • Rain having a pH less than 5.6.
      • rain containing acids that form in the atmosphere when industrial gas emissions combine with water
      • rain containing acids that form in the atmosphere when industrial gas emissions (especially sulfur dioxide and nitrogen oxides) combine with water

    Synonyms for the word acid rain

      • acid precipitation

    Hypernyms for the word acid rain

      • air pollution

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