The elemental composition in human body in descending order is 1. Oxygen - Carbon - Nitrogen - Calcium 2. Carbon - Oxygen - Nitrogen - Calcium 3. Calcium - Carbon - Oxygen - Nitrogen 4. Oxygen - Calcium - Carbon - Nitrogen

 The elemental composition in human body in descending order is
1. Oxygen - Carbon - Nitrogen - Calcium
2. Carbon - Oxygen - Nitrogen - Calcium
3. Calcium - Carbon - Oxygen - Nitrogen
4. Oxygen - Calcium - Carbon - Nitrogen 


Answer:1. Oxygen - Carbon - Nitrogen - Calcium




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