Salt=compound, soda=liquid solution, aluminum foil=element, milk=colloid,
steel=solid solution
Answer: Mass
<em>Input:</em> Mass is a measure of the quantity of matter in an object.
Explanation: Mass is the measure of amount of matter in a certain object.
It is <span>a substance produced by a living organism that acts as a catalyst to bring about a specific biochemical reaction.
So I think C matches the discription </span>
Disadvantage is your answer :)
