The chemical substance present in bones and teeth is A. Calcium phosphate B. Calcium chloride C. Calcium sulphate D. Calcium borate

Calcium phosphate
Calcium chloride
Calcium sulphate
Calcium borate

The correct answer is A. Calcium phosphate.

Calcium phosphate is the main mineral in bones and teeth. It is a hard, white substance that gives bones and teeth their strength. Calcium phosphate is also found in other parts of the body, such as the blood and muscles.

Calcium phosphate is made up of calcium and phosphate ions. Calcium is a mineral that is essential for many bodily functions, including muscle contraction, nerve function, and blood clotting. Phosphate is a mineral that is used to build and repair bones and teeth.

Calcium phosphate is found in many foods, including dairy products, meat, fish, and eggs. It is also found in some plant-based foods, such as nuts and seeds.

Calcium phosphate is an important mineral for human health. It is essential for strong bones and teeth, and it also plays a role in many other bodily functions.

Calcium chloride is a salt that is found in seawater. It is also used in some industrial processes. Calcium chloride is not found in bones or teeth.

Calcium sulphate is a salt that is found in gypsum. It is also used in some industrial processes. Calcium sulphate is not found in bones or teeth.

Calcium borate is a salt that is found in borax. It is also used in some industrial processes. Calcium borate is not found in bones or teeth.