Biology, asked by janhavibhati2004, 9 months ago

hardness of bones is due to the compounds of
Calcium and potassium (b) Potassium and phosphorus
Phosphorus and iron (d) Phosphorus and calcium

Answers

Answered by piyush9476

3

Answer:

calcium and potassium.

Explanation:

calcium makes the bones strong and potassium also do this.

Answered by majumdertapan88

10

Explanation:

d.phosphorous and calcium

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