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प्रश्न
The question has four options. Choose the correct answer:
Biodegradable pollutant is
पर्याय
plastic
asbestos
sewage
mercury
MCQ
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उत्तर
sewage
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Methods of Safe Disposal of Waste
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संबंधित प्रश्न
Describe the procedure how compost is usually produced.
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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:
Domestic waste constitutes
The question has four options. Choose the correct answer:
BOD is
