Question

Give reasons :-
i) An iron nail sinks in water while a ship floats.
ii) It is easier for a man to swim in sea than in fresh water.​

Answer 1

Answer:

As most of the space in the boat is taken up by air so it causes the overall density of boat to be lesser than that of water. Whereas, the density of the iron nail is more than that of water. Due to this the iron nail sinks while the boat floats on the surface of the water.

Explanation:

Answer 2

due to density

Explanation:

iron nail density is morethan water than ship