Why dead bodies float and when a living body submerges
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First, the dead body starts sinking in the water as the air in the lungs get replaced with the water.
The body remains in the water, till the bacteria in the guts and chest cavity starts producing the various gases like methane, hydrogen sulphide, and carbon-dioxide.
As we all know, balloon filled with air do not submerged in the water. Similarly, an air filled dead body do not remain in the water. As a result, it floats on the surface of the water..............................................
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