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Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
“In the 1980s, when they handled the sulfuric acid deposition really well, they should have done exactly the same with nitrogen deposition.
Source: https://southafricatoday.net/environment/how-manure-blew-up-the-netherlands/
Natural gas itself is odorless, but an additive called mercaptan gives it a pungent, sulfuric smell that aids in leak detection.