Question

If 100% of material 'Z' which is consumed by a healthy person is removed in the urine. What can
you say about 'Z'?
(A) It is not at all necessary for the body
(B) It is fully absorbed by the blood
(C) Both A and B
(D) None of the above​

Answer 1

Answer:

(A) it is not at all necessary for the body.