Which of the following terms is used to describe a hazardous material's ability to adhere to surfaces?

• A. Adsorption
• B. Absorption
• C. Concentration
• D. Stability

Answer: (A)

The term that describes a hazardous material's ability to adhere to surfaces is adsorption. This process involves the accumulation of atoms, ions, or molecules from a gas, liquid, or dissolved solid onto a surface. It is a surface-based phenomenon, where the particles attach themselves to the surface without penetrating the material of the surface itself.

In contrast, absorption refers to the process where a substance permeates or is taken up into the bulk of another material, completely entering the material rather than just adhering to its surface. Concentration involves the amount of a substance in a given volume and does not specifically pertain to how it interacts with surfaces. Stability relates to how resistant a material is to change or degradation over time, which again does not connect to surface interaction. Thus, adsorption is the correct term when describing how hazardous materials cling to various surfaces.