Answer:
Ice floats on water because it is less dense than water. When water freezes into its solid form, its molecules are able to form more stable hydrogen bonds locking them into positions. ... Ice floats on water because it is less dense than water.
I think the answer is A. Competition. :)
The correct answer among the choices is C. heat and pressure. This is the phenomenon that leads to the formation of metamorphic rocks. Thank you for posting your question. I hope this answer helped you. Let me know if you need more help.