Which set of signal words indicates increasing toxicity levels in pesticides?

The correct choice reflects a clear progression of signal words that indicates increasing toxicity levels in pesticides. The terminology used is standardized by regulatory agencies to communicate the potential hazards associated with pesticide products effectively.

The sequence begins with "Caution," which is used for products that pose a low level of toxicity, suggesting that users should handle the product carefully but with less immediate concern for health effects. "Warning" indicates a moderate level of toxicity, where there is a higher risk and a need for more protective measures during handling. Following this, "Danger" signifies a high level of toxicity where there is a significant health risk upon exposure. Lastly, "Danger-Poison" signifies an extreme level of toxicity, often indicating that the product is highly lethal, emphasizing the need for utmost care when handling, transporting, and using the pesticide.

This structured hierarchy assists users in understanding the potential dangers associated with pesticide products quickly, allowing for appropriate safety precautions to be taken based on the level of toxicity indicated.