Question
The bones of the old persons become brittle due to accumulation of-
- Magnesium,
- Calcium,
- Phosphorus,
- None of the above.
Answer
Calcium
Explanation:
The bones of old persons become brittle due to the accumulation of calcium in the form of calcium phosphate crystals. As a person ages, the body is not able to absorb calcium as efficiently, leading to a decrease in bone density and an increased risk of fractures.