Respuesta :
pure substances can be broken down into elements. (sugar, diamond, copper) mixtures combine structures together. (smoke and fog, dirt and water, water and salt)
Answer: Matter can be broken down into two categories: pure substances and mixtures. Pure substances are further broken down into elements and compounds. Mixtures are physically combined structures that can be separated into their original components. A chemical substance is composed of one type of atom or molecule :)!