Which one of these characterizes a hydrophilic substance a substance that is easily mixed with water?

Substances that are polar in nature. There is a principle in chemistry which is expressed as, "like dissolves like". This means that the substances only combines with substances of the same kind. Polar dissolves and combines well with polar and nonpolar dissolves and combines well with nonpolar. The hydrophilic substances should also be polar in nature.

Compaction and Cementation They are compacted, reducing the available pore space and expelling much of the pore-water. Dissolved minerals in the ground water precipitate (crystallize) from water in the pore spaces forming mineral crusts on the sedimentary grains, gradually cementing the sediments, thus forming a rock.