The team of specialists determined that it happens to the human body after he dies.
According to scientists, the burial of the people in the graves is the most inefficient way, requiring a lot of space. An alternative would be cremation, but it is expensive. You can also make a coffin made of biodegradable materials. Some offer a cost-cemetery skyscrapers.
It is noted that sometimes the human body can remain in the soil for centuries. This depends on the chemical composition of the soil.
The process of decomposition of the body is initiated by microorganisms and insects. Thereafter it cadaveric spots occur. Over time, the body stiffens. It is also known that the earth body decomposes more quickly than in an aqueous medium.