Question

what is a type of matter made of two or more elements?
atom
electron
proton
compound

Explanation:

To determine the type of matter made of two or more elements, we analyze the options:

• Electron: A subatomic particle, not a type of matter composed of elements.
• Atom: The basic unit of an element, not composed of multiple elements.
• Proton: A subatomic particle, not a type of matter with multiple elements.
• Compound: By definition, a compound is a substance made up of two or more different elements chemically bonded together. This matches the description in the question.

Answer:

compound