Which of the following is the cardinal sign of a toxic chemical release?

Question

Quizplus · Accepted Answer

The rapid onset of similar signs and symptoms in a group of individuals is the cardinal sign of a toxic chemical release, indicating that they have all been exposed to the same toxic agent. The other options may also indicate a chemical release, but they are not as specific or reliable. A low-hanging vapor cloud and puddles of liquid could be caused by non-toxic substances or may not be visible at all, while an odor similar to rotten eggs could be caused by various sources other than toxic chemicals.

Which of the Following Is the Cardinal Sign of a Toxic