Pesticides with high adsorption are most likely to move from the application site by dusts.

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Multiple Choice

Pesticides with high adsorption are most likely to move from the application site by dusts.

Explanation:
Adsorption is when a pesticide sticks to soil particles. If a pesticide has high adsorption, it binds strongly to the soil and is less likely to dissolve in water or evaporate. That binding means it travels with soil matter, and when soil or dust becomes airborne, the bound pesticide can move as dust. So the most likely route for highly adsorbed pesticides to move away from the application site is as dust. Leaching and runoff rely on water moving through or over soil, and evaporation requires the chemical to be volatile; both are less likely for strongly adsorbed pesticides.

Adsorption is when a pesticide sticks to soil particles. If a pesticide has high adsorption, it binds strongly to the soil and is less likely to dissolve in water or evaporate. That binding means it travels with soil matter, and when soil or dust becomes airborne, the bound pesticide can move as dust. So the most likely route for highly adsorbed pesticides to move away from the application site is as dust. Leaching and runoff rely on water moving through or over soil, and evaporation requires the chemical to be volatile; both are less likely for strongly adsorbed pesticides.

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