Question

A ship floats higher in sea water than in river water
Why?? Give Reason

Answer 1

Answer:

Seawater contains many dissolved minerals and ions that cause it to be denser than freshwater. Because of this, objects seawater exhibit greater buoyancy in seawater than freshwater (Objects displace an amount of water-based on their volume but the buoyancy is determined by the weight of the water displaced). As a result, a ship will float higher in seawater, reducing the drag of the ship against the water while sailing. This effect of heightened buoyancy is also the reason people float so easily in high-salt lakes such as those in Utah and the Dead Sea.