Answer:
Due to urease activity, bacteria are able to use urea as a sole nitrogen source and produce ammonia, which increases the pH in the proximal environment, causing Ca2+ and CO32- to precipitate as CaCO3.
Hello, BellaBouye205. Your answer would be Kurt Lewin. In the later years of his life, he devoted his time to studying small social groups. He claimed that groups change people's behaviorally as an individual. He also said that the small groups flourished greatly whenever they were preformed in a democratic way. I hope I helped!! Have a great evening.
