Question

what defines a mixture?
a. can be broken down into its basic parts through physical means
b. created through a chemical reaction
c. described by a chemical formula
d. cannot be broken down into simpler substances

Explanation:

A mixture is composed of two or more substances that are physically combined. It can be separated into its components through physical methods like filtration, evaporation, etc. Compounds are created through chemical reactions and have a fixed chemical formula, and elements cannot be broken down into simpler substances by chemical means.

Answer:

A. can be broken down into its basic parts through physical means