Most people perceive a greater risk from toxins with acute effects because a. they are only found in humans b. they are always the most deadly c. the synergistic effects of the combination of chemicals are easily distinguishable d. the negative outcomes occur rapidly e. the negative effects take years to show up

In the medical field, the word 'acute' triggers a serious condition because it means that its effect on the body is progressive in a short duration of time. This means, it needs urgent treatment measures, otherwise, the patient's health would deteriorate fast. Hence, the answer is letter D.

answer; fire resistant covered containers, until removed

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