A label that states "Extremely hazardous by skin contact - rapidly absorbed through the skin" would likely have which signal word?

The label indicating "Extremely hazardous by skin contact - rapidly absorbed through the skin" typically employs the signal word "Danger." This signal word is used for materials that pose a high level of risk, particularly those that can cause severe injuries or even death upon exposure. When a substance is noted as being extremely hazardous, especially in the context of skin contact and its rapid absorption, it emphasizes the need for immediate attention and precaution.

The other signal words like "Caution" and "Warning" denote lower levels of hazard. "Caution" is generally reserved for substances that may cause relatively less severe effects, while "Warning" indicates a moderate hazard. "Notice" is not a recognized signal word in this context and is typically used for informational purposes rather than indicating the degree of hazard. Therefore, "Danger" is the only appropriate choice given the severity of the risk described.