Berkelium is an artificial chemical element.
Berkelium is extremely rare, radioactive and unstable; berkelium is not for sale.
8.1% by weight
Water 75%
Berkelium is not a commercial material.
The Earths crust is approximately 650 km deep.
India is not covering some of the earth's crust but part of the earth's crust is part of India
The sudden vibration in the plates inside the crust causes the earths crust to rise & fall.
Berkelium is not a commercial product.
mantle
The earth's crust is not stress
47 % oxygen & 27% silicon.
half of earths layer