Question

In plants, micronutrients are those which are needed less than or equal to the ................ amount per gram of dry matter.

• A. 0.1 mg
• B. 0.1 g
• C. $0.1\mu g$
• D. $1.0\mu g$

Answer 1

The correct option is A 0.1 mg

Micronutrients or microelements are that elements which required in the small amount to the plants, in traces it is about 0.1 mg or less than o.1 mg of dry matter.

Cobalt, aluminium, Fe and nickel may be essential certain plants but required in the small amount.

So, the correct answer is option A.