Hi Aspirant!

Earth's crust is the outermost shell of the Earth which is divided into older, thicker continental crust and younger, denser oceanic crust and many more layers. It accounts for less than 1% volume of Earth. The crust is made upof solid rpcks and minerals, and phosporus is the one element which constitutes only 0.105% of Earth's crust. And when compared to human body, it is only 1.1% of human body.

Thankyou!