Medium General Knowledge Class 11 Level 4

What does BOD indicate in water pollution?

BOD जल प्रदूषण में किसका संकेत देता है?

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Correct Answer

A. organic pollution की मात्रा / Amount of organic pollution

Explanation

Step 1: Identify the water quality indicator. Step 2: High BOD means microbes need more oxygen to break organic matter. Step 3: Remember high BOD means polluted water.

Step 1: water quality indicator पहचानें। Step 2: BOD अधिक होने का मतलब microbes को organic matter तोड़ने में अधिक oxygen चाहिए। Step 3: High BOD means polluted water याद रखें।

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