Tennessee Category 3 Pesticide Certification Practice Exam

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What does soil adsorption refer to in relation to pesticides?

The extent to which pesticides evaporate into the atmosphere

The degree to which pesticides bind to soil particles

Soil adsorption in relation to pesticides refers to the degree to which pesticides bind to soil particles. This process is critical in understanding the behavior of pesticides in the environment, as it influences the effectiveness of the pesticide, its mobility, and its potential for leaching into groundwater or being taken up by plants. When a pesticide adsorbs to soil particles, it is less likely to move freely through the soil profile and into surrounding water bodies, which helps to mitigate contamination issues.

The extent of this binding can be influenced by various factors, including soil texture, organic matter content, and the chemical properties of the pesticide itself. A higher adsorption means the pesticide remains in the soil longer, providing a sustained release for pest control while also reducing the risk of environmental contamination.

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The rate at which pesticides are absorbed by plants

The amount of pesticides present in local water sources

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