Name one method for containing a hazardous material spill.

Diking or damming is an effective method for containing a hazardous material spill because it involves creating barriers that prevent the spread of the hazardous substance. This technique is particularly useful for liquid spills, as it can help to control the flow of the material and contain it within a designated area, reducing the potential for environmental contamination and exposure to people. By using physical structures to contain the spill, responders can work to manage and remediate the situation more safely and effectively.

Techniques such as covering with sand can provide support in certain scenarios, but they may not be sufficient on their own to contain a larger spill. Washing with water may disperse hazardous materials rather than contain them, potentially leading to further spread and contamination. Evaporating, which is not a practical or reliable method for hazardous materials, generally addresses only some volatile substances and does not address containment. The effectiveness of diking or damming makes it a preferred strategy in hazardous material response efforts.