A material made by combining carbon and metal is ______.

The correct answer is carbide. When carbon combines with metal, it forms a compound known as a carbide. Carbides are characterized by their hard and heat-resistant properties, which make them valuable in various industrial applications, including cutting tools and abrasives. The presence of carbon within this compound enhances the material’s hardness and strength, making it suitable for demanding environments.

In contrast, steel is an alloy primarily made from iron and a small amount of carbon, while alloys consist of two or more metals or a metal and a non-metal to achieve desired mechanical properties. Bronze is a specific type of alloy made from copper and tin. Therefore, the term "carbide" specifically refers to the chemical compound formed when carbon is combined with metal, distinguishing it from the other terms listed, which represent broader classifications of materials and do not exclusively focus on the carbon-metal combination.