How can pesticides enter the human body?

Pesticides can enter the human body through multiple pathways, including dermal absorption (through the skin), inhalation (breathing in vapors or aerosols), and ingestion (swallowing food or water that has been contaminated). This multifaceted entry point is significant because it highlights the various ways individuals can be exposed to harmful chemicals, emphasizing the importance of safety precautions when handling pesticides.

The skin is a large organ that can absorb certain substances, including pesticides, especially when they are in liquid form. Inhalation poses a risk when working in areas where pesticides are applied, as airborne particles can be easily breathed in. Ingestion typically occurs accidentally, such as through consuming contaminated food or water, underscoring the necessity for clean handling practices.

While the other options reflect potential routes of exposure, they do not encompass the complete range of ways pesticides can enter the body. For instance, ingestion is a valid route, but it is not the only one. Similarly, injection is not a typical method for pesticide exposure in the context of general use. The eyes can also absorb substances, but the option lacks the broader spectrum of methods that includes inhalation and skin contact, making the selected answer the most comprehensive and accurate representation of potential exposure pathways.