What are the three words in order of chemical toxicity?

The correct sequence of terms regarding chemical toxicity is significant because it reflects the escalating levels of risk associated with chemicals. The terms "caution," "warning," and "danger" represent increasing levels of hazard.

"Caution" indicates a moderate level of risk that suggests careful handling and awareness of the potential for harm. This is typically the first alert that there might be some level of toxicity present.

"Warning" is a step up, signifying a higher level of hazard where exposure can lead to significant health risks. This level implies that one should take more rigorous precautions.

Finally, the term "danger" indicates the highest level of toxicity. Chemicals labeled as dangerous pose a severe risk and can lead to serious health consequences if not handled properly.

Understanding this hierarchy is essential in the context of chemical safety, as it helps individuals recognize the potential risks associated with different substances and respond accordingly. The clarity of these labels is crucial for ensuring safe practices in environments where toxic substances are handled.