Which of the following characteristics affects the movement of pesticides?

The movement of pesticides is significantly influenced by their solubility, which refers to how well a substance can dissolve in a solvent, typically water. Pesticides that are highly soluble can easily move through soil and into groundwater, posing potential risks to water sources. This characteristic is particularly important in the context of aquatic environments, as it determines how quickly and efficiently the pesticide can disperse in water systems.

In contrast, properties such as color, odor, and taste do not directly impact the movement of pesticides. While they might relate to human perception or influence user handling and application, they do not govern how a pesticide interacts with environmental elements such as soil or water. Understanding the solubility of a pesticide is crucial for predicting its behavior in the environment and assessing its potential risks.