DDT has been proven to be extremely harmful to the environment.
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The brush fire burn is important because Hayes said some trees are harmful to the prairie.—Jeff Vorva, Chicago Tribune, 26 Apr. 2026 Could agents create harmful workflows on their own without the company’s help?—Stephen Clark, ArsTechnica, 25 Apr. 2026 Noises louder than 85 decibels are considered harmful to humans.—Harrison Mantas, Fort Worth Star-Telegram, 25 Apr. 2026 The emphasis on human rights throughout the Adelphi Charter addresses the problem of pharmaceutical patents that raise prices and culturally harmful patents on traditional knowledge.—Encyclopedia Britannica, 24 Apr. 2026 See All Example Sentences for harmful