The fact that ice is less dense than water is related to the fact that ____.

the molecular structure of ice is much less orderly than that of water

the molecules of ice are held to each other by covalent bonding

ice has a molecular structure in which water molecules are arranged randomly

ice has a molecular structure that is an open framework held together by hydrogen bonds

3 answers

I think #4 fits the best.
first
D is the correct answer!!!