Question

Why it is easier to swim in the sea as compared to the freshwater? Give two reasons

Answer 1

When salt is dissolved in water, as it is in ocean water, that dissolved salt adds to the mass of the water and makes the water denser than it would be without salt. Because objects float better on a dense surface, they float better on salt water than fresh water.

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Answer 2

When salt is dissolved in water, as it is in ocean water, that dissolved salt adds to the mass of the water and makes the water denser than it would be without salt. Because objects floatbetter on a dense surface, they floatbetter on salt water than fresh water.