|MadSci Network: Earth Sciences|
Absolutely. Actually, you've mistaken bacisity with acidity. Acidic solutions have pH below 7 and basic solutions have pH greater than 7. pH is defined as the negative log of the hydronium ion (equivalent to H+) concentration -Log[H+]. Basic solutions are possible in our atmosphere mainly through the release or atmospheric production of ammonia, a Lewis Acid base. Ammonia is released from anthropogenic sources (such as factories) or produced in the atmosphere through chemical reactions. Basic rain has been observed on the New England coast and in highly industrial areas such as mainland China. -inkoo
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