What makes the matrix of bones hard in the human body?

What makes the matrix of bones hard in the human body?
  1. Calcium salts
  2. Chondroitin salts
  3. Glucose
  4. Fats

Solution

The matrix of bones in the human body is hard due to the presence of calcium salts. This makes bones strong enough to support the weight of the body and protect delicate organs.

Asked in: NCERT

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