Answer:
When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster, the space between atoms increases. The motion and spacing of the particles determines the state of matter of the substance. The end result of increased molecular motion is that the object expands and takes up more space.
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Answer: B
Explanation: Rocks are non living and don’t split by themselves, they need an EXTERNAL force for them to split while bacteria is a living thing and can reproduce on its own.