Human body works in the pH range of:
- A. 6.8-7.2
- B. 7.0-7.8 ✓
- C. 6.5-7.5
- D. 7.5-8.0
Correct Answer: B. 7.0-7.8
Explanation
The human body tightly maintains its internal pH level within the narrow range of 7.0 to 7.8 to ensure proper physiological and enzymatic functions.
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