A(n) chemical bond forms when two atoms share one or more pair of electrons.
Doctors have not identified a specific cause or result but they think that there are risk factors like:
- advancing age
- family history
-umheathly life style choices
- taking certain medicine
and just in case you did not know what osteoporosis is it is a common disease that weaken the bone and as they weaken you have a higher risk of unexpected fractures
D. endocrine!! This is for sure it
Explanation:
<h3>this is my final answer hope it helps </h3>
<h3>Answer: Letter A</h3>