Biology · Environmental Issues
निम्नलिखित में से कौन सा जल प्रदूषण का एक मुख्य कारण है?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1भारी धातुएं (Heavy metals)✓
- 2जीवाश्म ईंधन का जलना
- 3भंग ऑक्सीजन (Dissolved oxygen)
- 4वनीकरण
सही उत्तर देखें
भारी धातुएं (Heavy metals)
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