Question

Consider the following with respect to criteria
for essentiality of an element
(a) In the absence of the element of plants do
not complete their life cycle or set the seeds.

(b) Requirements of the elements must be
specific and replaceable by another element.

(c) Element cannot be directly involved in the
metabolism of plant.

(d) Deficiency of any one element cannot be
met by supplying some other element.
​

Answer 1

ANS: a) in its absence ,the plant 's metabolism will be affected, the plant cannot complete its life cycle ,and it also cannot be replaced by any other element...then an element is essential....

.............. thankyou...........