Source of arsenic pollution in the ground water isभू-जल में आर्सेनिक प्रदूषण का स्रोत है:
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Correct answer: D. Agricultural wastesकृषि अपशिष्ट
Explanation
Arsenic in Indian groundwater (the Ganga–Brahmaputra plains, West Bengal, Bihar, Assam) is overwhelmingly geogenic: arsenic-bearing minerals in deep underground alluvial formations dissolve into the aquifer under reducing conditions, and heavy tube-well pumping brings the water up. Industrial effluents and dyeing units can add arsenic locally but are not the source of the widespread contamination.भारतीय भू-जल (गंगा–ब्रह्मपुत्र मैदान, पश्चिम बंगाल, बिहार, असम) में आर्सेनिक मुख्यतः भूजनित है: गहन भूमिगत जलोढ़ विरचनों में उपस्थित आर्सेनिक-युक्त खनिज अपचायी दशाओं में जलभृत में घुल जाते हैं और अत्यधिक नलकूप-पंपिंग से यह जल ऊपर आ जाता है। औद्योगिक बहिःस्राव व रंजक उद्योग स्थानीय स्तर पर आर्सेनिक जोड़ सकते हैं, पर व्यापक संदूषण का कारण नहीं हैं।More People, Development and Environment questions
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