UPSC 2014 CDS I GK Paper
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Question : 109 of 120
Marks:
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Deficiency of which of the following elements is responsible for weakening of bones?
1. Calcium
2. Phosphorus
3. Nitrogen
4. Carbon
Select the correct answer using the code given below.
1. Calcium
2. Phosphorus
3. Nitrogen
4. Carbon
Select the correct answer using the code given below.
[2014 CDS-I]
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