1.

The inorganic essential elements which are obtained from the soil are called asA. mineral elementsB. non-mineral elementsC. non-essential elementsD. both b and c

Answer» Correct Answer - A
Essential elements derived from soil are termed as mineral elements E.g. , P,K,S,Mg,Ca,Fe,Zn,Mn,B,Cu,Mo,Cl and N. Essential elemen ts got from air or water are known as non-mineral elements E.G., C,H,O in aquatic habitats as well as in soil solution, mineral elements occur dissolved in water. Nitrogen is included in both mnineral and non-mineral elements.


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