True. However sometimes you could just be over using your body and causing stress to your muscles and bones therefore causing injuries a different way.
Megan is depressed and has a eating disorder probably
The answer to your question on which are the most common minerals that can be located in Earth's crust would be B - Feldspar and quartz
In fact, the reason why this is the correct answer is because if you were to dig into the Earth's crust - these two metals are what you would most likely found in a lot of cases.
