All of the following are true about mixtures EXCEPT *

A. their composition may vary
B. their components do not come together to make a new substance
C. their components are usually hard to separate by physical means
D. they can be made up of 2 or more components

3 answers

There aren't any good answers here. Probably c is the best choice. That's true some of the time and not true at other times.
Hdurbfh
B