The difference(s) between drift and volatilization of a herbicide is/are:

The distinction between drift and volatilization is important for understanding herbicide application practices. Drift refers to the movement of herbicide particles through the air during or shortly after the application process, often influenced by factors such as wind speed, droplet size, and spray pressure. Because drift can occur whenever sprays are applied, it can be controlled to some extent by adjusting various application parameters, including spray pressure, which influences droplet size and trajectory.

Volatilization, on the other hand, is the process by which a chemical transitions from a liquid to a gaseous state after application, primarily affected by the physical properties of the herbicide, including vapor pressure. Herbicides with high vapor pressures are more likely to volatilize under suitable environmental conditions, such as higher temperatures and low humidity. This aspect distinguishes volatilization from drift since once a herbicide has volatilized, it does not remain at the application site and cannot be effectively controlled after application.

Thus, statement A accurately identifies that only herbicides with high vapor pressures are susceptible to volatilization. Statement B is also correct in asserting that drift can be managed by making adjustments to the application method, while volatilization is largely uncontrollable once the herbicide is released into the air.

Due to the correctness of both