What signal word would most likely be used if a label states "Extremely hazardous by skin contact—rapidly absorbed through the skin"?

The label indicating "Extremely hazardous by skin contact—rapidly absorbed through the skin" is certainly alarming and reflects a high level of toxicity associated with the product. In pesticide labeling, signal words categorize the level of hazard present with specific terms.

The signal word "DANGER" is used for the most severe hazards, which would include acute toxicity that can be fatal or cause serious injury upon exposure. In this context, since the label specifies "extremely hazardous" and highlights the potential for rapid absorption through the skin, "DANGER" is the appropriate signal word that corresponds to the seriousness of the risk.

Other signal words like "WARNING" and "CAUTION" denote lesser levels of risk. "WARNING" indicates moderate hazard, while "CAUTION" suggests the lowest level of danger. The term "HANDLE WITH CARE" is not a standardized signal word in pesticide labeling, and it lacks the specificity needed to convey the extreme risk outlined in the label.

Thus, "DANGER" is the correct signal word that communicates the serious nature of the product's hazards effectively.