Biology · Environmental Issues
औद्योगिक कचरे से होने वाले मृदा प्रदूषण का प्राथमिक स्रोत क्या है?
- 1अनुपचारित रसायनों का विसर्जन✓
- 2घरेलू सीवेज
- 3जैविक कम्पोस्ट
- 4कृषि उर्वरक
सही उत्तर देखें
अनुपचारित रसायनों का विसर्जन
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