Question

Why it is easier to swim in sea water than in river water.

Answer 1

Answer:

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Explanation:

It is easier to swim in sea water thanin a river because, the sea watercontains salt which increases the density of water and also increases its upthrust so, the body sinks less in it and we swim easily ... Easy to swim in sea water than in river water:Seawater contains a large number of dissolved salts.

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Answer 2

Answer:

It is easier to swim in sea water than river water because sea water contains dissolved salt in it due to which the density of water becomes more so it doesn't allows you to sink easily in seawater ,And in river water the density of water is low because it doesn't contain salt ,So it is easier to swim in sea water than river water.