Question

what is calcium?????..??​

Answer 1

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Calcium supplements are salts of calcium used in a number of conditions. Supplementation is generally only required when there is not enough calcium in the diet.

Explanation:

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Answer 2

Answer

a chemical element that is found in foods such as milk and cheese. It helps to make bones and teeth strongदूध व पनीर जैसे खाद्य पदार्थों में पाया जाने वाला एक रासायनिक तत्‍व जो हडि्‌डयों व दाँतों को मज़बूत बनाने में सहायक होता है; कैल्सियम, चूना

Explanation:

Calcium is a chemical element with the symbol Ca and atomic number 20. As an alkaline earth metal, calcium is a reactive metal that forms a dark oxide-nitride layer when exposed to air. Its physical and chemical properties are most similar to its heavier homologues strontium and barium. It is the fifth most abundant element in Earth's crust and the third most abundant metal, after iron and aluminium. The most common calcium compound on Earth is calcium carbonate, found in limestone and the fossilised remnants of early sea life; gypsum, anhydrite, fluorite, and apatite are also sources of calcium. The name derives from Latin calx "lime", which was obtained from heating limestone.

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