Which shows two structures that are made mostly of metal?

What are the different types of metals?

At Metal Supermarkets, we supply a wide range of metals for a variety of applications. Our stock includes: stainless steel, alloy steel, galvanized steel, tool steel, aluminum, brass, bronze and copper. Our hot rolled and cold rolled steel is available in a wide range of shapes including: bars, tubes, sheets and plates.

What are the properties of metal?

Metals are widely used because of their properties: strength, ductility, high melting point, thermal and electrical conductivity, and toughness. These properties also offer clues as to the structure of metals. As with all elements, metals are composed of atoms.

A metal (from Greek μέταλλον métallon, "mine, quarry, metal") is a material that, when freshly prepared, polished, or fractured, shows a lustrous appearance, and conducts electricity and heat relatively well. Metals are typically malleable (they can be hammered into thin sheets) or ductile (can be drawn into wires). A metal may be a chemical element such as iron; an alloy such as stainless steel; or a molecular compound such as polymeric sulfur nitride.

Explanation:

answer; ///i believe that the correct answer is (d); ///

sound moves fastest in solids because the molecules are tightly packed and it allows sound to vibrate