A) 16
B) 5
C) 4
D) 8
Correct Answer: A
Solution :
The essential nutrients are divided into two categories : A. Major nutrients : (Plants require in large quantities). Ex. C, H, O, N, S, P, K, Mg, Ca, Fe. B. Minor nutrients : (Plants required in very small amount). Ex. B, Mu, Zn, Cu, Mo, Cl.
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