Environment & Ecology · Environmental Ecology
पेयजल में किस भारी धातु या उपधातु की उच्च मात्रा के निरंतर संपर्क में रहने से 'ब्लैक फुट' नामक बीमारी होती है?
- 1सीसा (Lead)
- 2कैडमियम (Cadmium)
- 3आर्सेनिक (Arsenic)✓
- 4पारा (Mercury)
सही उत्तर देखें
आर्सेनिक (Arsenic)
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