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प्रश्न
The question has four options. Choose the correct answer:
Most harmful type of environmental pollutants are
पर्याय
human organic wastes
natural nutrients in excess
waste animal feed
non-biodegradable chemicals
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उत्तर
non-biodegradable chemicals
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संबंधित प्रश्न
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The question has four options. Choose the correct answer:
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The question has four options. Choose the correct answer:
BOD is
