Describe about bio chemical process of weathering?

As explained below.

Explanation:

Biochemical weathering is the disintegration of rocks due to the presence of roots of plants and trees that hold soil and thereby break down the bedrocks deep inside the earth. A similar process can be done by man and animals as these animals dig up the soil and bring it out and thus expose the newer layers of soil and hence making out prone to erosion and disintegration, and decompose by bacterias. Thus altering the chemical concentration of rock minerals. Man as an active agent of weathering due to the construction activities destroys the top layers of soil and thereby exposing it underneath thus winds and running water can entree the rocks by cracks and crevices and cause rocks to fracture and thereby leading to biogenically produced-chemical weathering.

Magma forms by partial melting of upper mantle and crust. partial melt means that only a fraction of the available material forms a melt, and that the remainder stays solid. the partial melt rises because of its lower density and ascends through he crust. this is so conclusive mean the answer would be magma igneous rocks or balistic magma.

A,f, g are the points