Kilogram is a metric unit for

For mass

In mass of an object you can use the unit that has gram on it like

kg, hg, dag, g, dg, cg, mg.

plato users

given bodies of water

pacific / arctic / indian / southern

[ a ] the caribbean sea

[ b ] the northern ocean

[ c ] the atlantic ocean

[ d ] the barents sea

with this being the given answers