Environment & Ecology · Environment
निम्नलिखित में से कौन सा/से मृदा प्रदूषण (मिट्टी के प्रदूषण) में योगदान देने वाले प्रमुख स्रोत हैं/हैं?
- 1उपरोक्त सभी✓
- 2शहरी अपशिष्ट जल और सीवेज
- 3कीटनाशक और रासायनिक उर्वरक
- 4औद्योगिक ठोस अपशिष्ट
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उपरोक्त सभी
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