Respuesta :

d is an example of mixture

Answer:

A) air

Explanation:

What is a mixture?

  • A mixture is a combination of two or more elements that have not chemically combined with one another. Each element in the mixture still has its own properties.
  • Examples: Air; air is made of nitrogen, oxygen, CO2, and more, but they haven't chemically combined

What is a compound?

  • A compound is a substance that is made by two or more elements chemically combining with one another.