What is adsorption?

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Prepare for the Washington State Department of Agriculture Exam. Study with flashcards and multiple choice questions, each question comes with hints and explanations. Get ready to ace your exam!

Multiple Choice

What is adsorption?

Explanation:
Adsorption is the process by which a substance sticks to the surface of a solid, such as soil particles, rather than becoming dissolved in the water. In soils, chemicals adsorb to surfaces of clay minerals and organic matter, which can slow their movement with water and influence how long they persist and how available they are to plants or organisms. This is different from dissolving in water (which would mix into the soil solution), turning into vapor (volatilization), or being a measure of acidity (pH).

Adsorption is the process by which a substance sticks to the surface of a solid, such as soil particles, rather than becoming dissolved in the water. In soils, chemicals adsorb to surfaces of clay minerals and organic matter, which can slow their movement with water and influence how long they persist and how available they are to plants or organisms. This is different from dissolving in water (which would mix into the soil solution), turning into vapor (volatilization), or being a measure of acidity (pH).

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