Final answer:
Nearly 99% of the body's calcium is stored in bones, part of a group of major elements including carbon, hydrogen, 1. oxygen, and nitrogen.
Step-by-step explanation:
Nearly all (99%) of the body's calcium is stored in the bones, which are not only structural components but also serve as a reservoir for minerals. One of the major elements found in the human body includes calcium (Ca), alongside others such as carbon (C), hydrogen (H), oxygen (O), nitrogen (N), phosphorus (P), and sulphur (S). Bones are the primary site for calcium storage. They release calcium into the bloodstream when necessary to maintain a stable level. This process is critical, as calcium plays multiple roles, including in the structure of bones and teeth, blood clotting, muscle contraction, and nerve function.
Understanding the abundance and role of elements in the human body provides insight into our biological chemistry and its interaction with the environment. For instance, we obtain oxygen and hydrogen from the air we breathe and the water we drink, while carbon and nitrogen, which are also abundant in the atmosphere, are assimilated through the food we consume. These four elements—oxygen, hydrogen, carbon, and nitrogen—collectively make up 96% of living organisms, illustrating their fundamental role in life's biochemistry.