Final answer:
The volume of a substance is not directly proportional to the amount of matter present; density plays a crucial role.
Explanation:
False. When the substance is the same, the volume is not directly proportional to the amount of matter. An example to illustrate this is comparing a cup of water with a cup of mercury. Even though they both fill a cup, the cup of mercury contains more matter due to mercury's higher density.
Learn more about Properties of Matter here:
https://brainly.com/question/24672553
