Teaching Bihar STET Paper 1 (माध्यमिक) Mock Test 2024 Biology Ecology and Environment Environment

मिनामाता रोग _____ द्वारा होता है।

1
क्रोमियम 
2
कैडमियम
3
मिथाइल मर्करी
4
रेडियो एक्टिव तत्व
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