(transitive) solve, resolve, settle (a problem, a trouble, a criminal case) / (intransitive) be solved, be settled / (intransitive) can be solved; be soluble

seawater

area of sea

ameliorate, improve, better, upgrade

amelioration, improvement, betterment

shopping, buying / purchased goods

opening to traffic

vivisection (The action of invasive treatment of a living organism for scientific investigation)

abductor (kidnapper)

puppet / defeat