Why is it easier for a person to swim in sea water than in river water?
It is easier to swim in sea water than in river water. Explain the reason.
Where does a person find easier to swim- in a sea water or in a river water? Give reason for your answer.
A man first swims in sea water and then in river water. (i) Compare the weights of sea water and river water displaced by him. (ii) Where does he find it easier to swim and why?