Q. Which is the hardest material of the human body?
A) Dentine
B) Enamel
C) Teeth
D) Bone
Explanation
A tooth consists of three region, i.e., crown, neck and root. The exposed part, crown is surrounded by the hardest material of the body. This hardest material is enamel which is the secretion of cells of ameloblast
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.