Q. Which of the following are required in minimum amount by human?
A) Iron, iodine, carbon, manganese, copper, oxygen
B) Iron, iodine, manganese, copper, zinc, fluorine
C) Iron, iodine, manganese, zinc, hydrogen
D) Nitrogen, oxygen, zinc, fluorine
Explanation
Fe, I, Mn, Cu, Zn and fluorine are required in minimum amount by human.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.