Question

question 6 of 25
which is a common element in the human body that is located mostly in bones?
a. nitrogen
b. calcium
c. barium
d. hydrogen

Explanation:

Calcium is a major component of bones, providing them with strength and structure. Nitrogen is mainly in proteins, barium is not a common body - element, and hydrogen is in various compounds but not concentrated in bones.

Answer:

B. Calcium