A trace element is an element which

Options

(a) Is a radioactive and can be traced by Geiger counter
(b) Is required in very minute amounts
(c) Draws other element out of protoplasm
(d) Was one of the first to be discovered in protoplasm

Correct Answer:

Is required in very minute amounts

Explanation:

They are those essential elements which are required by plants in traces only, equal or less than 0.1 mg/gm of dry matter. They are eight in number – Fe, Zn,Mn,B,cu,Mo,Cl and Ni