Question

why does human float on water

Answer 1

by swimming human can float on water.

Answer 2

I want to tell some facts
The buoyancy of water reduces your body weight by 90%.
The stress upon weight-bearing joints,muscles and bones is also reduced.
Body fat floats better than muscle.
 As long as the water your body displaces weighs more than you do, you float.
This is basically Archimedes' Law.
when this dont happen you sink.Hence you have to make constant moment of legs and hand to float.

Please mark me as brillianist please..