Black soil is composed from red soil in long period of time. minerals and organic decayed mix with red soil and it became black and more fertile
Soil composition is soil mixed of rock particles, minerals, decayed organic material, water, and air.
i'm not sure :( sorry
No, but they help the plants grow.
well i have conducted an experiment on black salt as per my requirements and i found out that it comprised of the following cations and anions:anions: Na(sodium),NH4,Ni(very...