What term describes the act of keeping a hazardous material from spreading to an unwanted location?

• A. Containment
• B. Confinement
• C. Isolation
• D. Sequestration

Answer: (B)

Keeping a hazardous material from spreading to an unwanted location is about restraining its movement within a defined area. Confinement captures this idea best because it emphasizes actively limiting the substance to a controlled space or boundary so it cannot reach other locations.

Containment is about barriers that prevent release, which is related but broader and not as focused on movement within a defined area. Isolation refers to separating the material from people or other materials to reduce exposure, rather than keeping it from spreading to specific places. Sequestration means removing the material from use and storing it away, which is more about removal than maintaining boundary control.