How does a spill boom control a hazardous material?

A spill boom is primarily designed to form a barrier that prevents the hazardous material from spreading further. When deployed, the boom creates a physical boundary that encircles the spill, effectively containing it within a designated area. This containment is critical in minimizing the risk of environmental contamination and exposure to the hazardous substance.

In contrast, while some booms may have properties to absorb materials or reduce agitation, their primary function is to establish a barrier. Other options suggest actions like absorbing the material or covering it, which are typically characteristics of different spill response tools or methods rather than the primary function of a spill boom. By forming a barrier, the boom allows responders to implement further cleanup strategies safely and more effectively.