Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test General Science Biology Biology in Everyday life
The process of formation of a dark-coloured amorphous substance (organic matter that has reached maturity) decomposed from plant residues is called:
1
stratification
2
humification
3
mineralisation
4
More than one of the above
5
None of the above