Which material is made by combining two or more different materials to improve strength or durability?

• A. Composite Material
• B. Thermoset Plastic
• C. Malleability
• D. Toughness

Answer: (A)

Composite materials are created by combining two or more different materials to improve properties like strength and durability. By putting together constituents with different characteristics, the resulting material can be stronger, stiffer, or more resistant to wear than its components alone. Examples include fiberglass (glass fibers in a polymer resin), carbon fiber-reinforced polymers, and concrete (cement paste with aggregates). While some thermoset plastics can be part of composites, the general idea described is the use of a composite material, not a single polymer by itself. Malleability and toughness describe properties, not a material class, so they don’t fit the description of something made by combining materials.