Answer:
hypocalcemia
Explanation:
Calcium is a vital mineral. Your body uses it to build strong bones and teeth. Calcium is also needed for your heart and other muscles to function properly. When you don’t get enough calcium, you increase your risk of developing disorders like:
osteoporosis
osteopenia
calcium deficiency disease (hypocalcemia)
Children who don’t get enough calcium may not grow to their full potential height as adults.
You should consume the recommended amount of calcium per day through the food you eat, supplements, or vitamins.
No, it's because we need to breathe. Your body needs oxygen. Air pressure has little to nothing to do with it as far as I know.
The answer is b, to stregthen muscles
