The correct answer is C: hydrogen bonds
Water's surface tension and heat storage capacity are accounted for by its hydrogen bonds. Molecules of water are very strongly attracted to each other through hydrogen bonding.
Hydrogen bonds are constantly formed and broken in water molecules. Surface tension results from this hydrogen bonding which means that Water has a higher storage capacity for heat.
That is why at night, the Earth gets colder must faster than water.
Water takes time to slowly release heat to keep the atmospheric temperature moderate at night.
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