Biology, asked by janhavibhati2004, 11 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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