【Daily Question】September 3, 2016: Participation +2 Wealth； +3 to +10 wealth for correct answers

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To increase the popularity of the chemical analysis section, a \"One Question per Day\" campaign has been launched to foster an active atmosphere for technical exchanges while also providing rewards in the form of financial benefits to users. 【Daily Question】 (Single-choice question) Which of the following statements regarding the disposal of waste residues is incorrect? ( ) A. Waste residues with low toxicity, stability, and low solubility can be buried deep underground. B. Mercury salts in precipitated residue can be used for mercury recovery through roasting. C. Organic waste residues can be discarded. D. AgCl waste residues can be sent to departments specialized in silver recovery. Correct answer: C. Post your answer in the replies; participating in this quiz earns you +2 wealth points. Those who get all answers correct will receive an additional +3 to +8 wealth points. Those who provide thorough analyses or detailed calculation processes for the questions and answers will receive extra wealth points as a reward. If your answer is correct and your analysis is accurate, it will be marked as the best reply (or best assistance). Feel free to answer the questions.