How does absorption work when dealing with hazardous materials?

Absorption in the context of hazardous materials primarily occurs when a hazardous substance penetrates and is held within the pores of another material, allowing it to be effectively managed and removed. When considering effective absorption agents, such as sponges or absorbent pads, they typically have a porous structure that allows liquids to be drawn in and contained.

Therefore, the option about mixing with a spongy material for disposal accurately represents the process of absorption. This method helps to limit the spread of hazardous substances while creating a manageable waste product for safe disposal.

In comparison, the other methods listed either do not accurately depict absorption or relate more to different processes of dealing with hazardous materials. For instance, binding to surfaces does not involve the penetration characteristic essential to absorption. Evaporating hazardous substances refers to a different process entirely—elimination of the hazardous material by turning it into vapor. Finally, filtering out contaminants involves separating solid particles from fluids and does not communicate the absorbent characteristics of materials that retain liquids.