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One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points; September 19

2016-09-19View Original

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Multiple-choice question: When large-scale units are in operation within a chemical plant, noise levels can be quite high; if these levels exceed 80 decibels, what are the effects on the human central nervous system from being exposed to such high noise levels for an extended period of time? ( ) A. Increased heart rate B. Vascular spasm C. Excitement of the cerebral cortex D. Imbalance in inhibition. Answer: CD

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