Cell elongation is adversely affected by / Element required by plant in large quantity is

Options

(a) Sodium
(b) Cobalt
(c) Manganese
(d) Nitrogen

Correct Answer:

Nitrogen

Explanation:

The deficiency of nitrogen causes chlorosis in leaves of the plants and the cell division as well as cell elongation is stopped, due to which plants remain dwarf and production of flowers,fruits and seeds is decreased.