Whether it's an inland sea or a lake is still being debated. I don't think a well-written test would have you make that distinction, but the only thing you can really do is explain the issue and try to get clarification on what the test writer's definition of "sea" is.
ornithology, forestry, entomology, triple E, green generation, water quality, dynamic planet (lakes & rivers), awesome aquifers, meteorology, robot arm, write it do it. :)
A cone of depression occurs when you drop your scoop of ice cream on the ground on a hot summer day.