Question

an angle grinder is used to grind ______.

• soft, porous materials
• imperfections in wood
• hard, heavy materials
• nonmetals only

Explanation:

Angle grinders are power tools designed for heavy - duty tasks. Soft, porous materials are usually handled by simpler tools. Imperfections in wood are typically addressed with wood - specific tools like sanders. Angle grinders can work on both metals and non - metals and are suitable for grinding hard, heavy materials such as metal, stone, etc. And they are not limited to nonmetals only.

Answer:

C. hard, heavy materials