Question

Identify the elements whose deficiency causes both necrosis and chlorosis.

• A. Cu and Co
• B. Mo and Ca
• C. Mg and K
• D. Fe and Mn

Answer 1

The correct option is C Mg and K

The plant requires the elements for the growth and developmental processes. The deficiency of the element causes adverse effects on the growth of the plant. The deficiency of the elements Mg and K results in the necrosis and chlorosis. Necrosis is the death of the living tissue and chlorosis is the decolourisation of the pigment of the leaves.

Thus, the correct answer is option C.