Biology · History of Medicine
हैजा (cholera) और दूषित पानी के बीच संबंध की खोज किसने की थी?
- 1जॉन स्नो✓
- 2एडवर्ड जेनर
- 3रोनाल्ड रॉस
- 4लुई पाश्चर
सही उत्तर देखें
जॉन स्नो
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