Question

Water in ocean currents can descend when it becomes colder and saltier than

the surrounding water. If water descends to the bottom of the ocean, then other
water must rise to the top. What causes water to rise to the top of the ocean?*
It is forced upward by underwater mountain ranges
It cools down and dissolves additional salt
It is brought upward by organisms that live in the ocean
It becomes less dense than the surrounding water

Answer 1

Answer: D it becomes less dense than the surrounding water

Explanation: when the water becomes colder and saltier it becomes more dense so the less dense water rises to the top.