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प्रश्न
What is COD?
अति संक्षिप्त उत्तर
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उत्तर
COD (Chemical Oxygen Demand) is the measure of oxygen equivalent required for chemical oxidation of total organic matter (both biodegradable and non-biodegradable) present in water. High COD indicates high pollution.
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पाठ 20: Environmental Issues - EXERCISES [पृष्ठ ११६०]
