Area that separates one use from another

• A. Zoning Ordinances
• B. Buffer Zone
• C. Building Codes
• D. Building Permits

Answer: (B)

The main idea is a physical separation between incompatible land uses to protect the surrounding area from their impacts. A buffer zone is that strip of land—often landscaped—that sits between, for example, industrial activity and residential or commercial areas. It helps cut down on noise, fumes, glare, and traffic, and can also provide security and aesthetic benefits.

Zoning ordinances, by contrast, are the rules that designate which uses are allowed in different areas; building codes govern construction standards; building permits are approvals to start projects. While these tools shape where uses can go and how they must be built, they’re not the actual area that physically separates uses. That's why the correct concept for an area that separates one use from another is a buffer zone.