What is the relation of a liquid with its depth and density

hope this will benefit for you thank you for the question

Explanation:

With liquids, density is almost independent of depth as liquids are almost incompressible. With gases, such as the atmosphere, density increases with depth due to gravity. The atmosphere can be considered an "ocean" of air. We live at or near the bottom so we experience significant air density. This decreases with altitude.

the answer is barium and copper bromide