यूट्रोफिकेशन के परिणाम – McqOptions

MCQOPTIONS

1.	यूट्रोफिकेशन के परिणाम
A.	कृषि और सीवेज पानी
B.	वाहन निकास
C.	कीटनाशकों
D.	औद्योगिक अपशिष्ट
Answer» B. वाहन निकास

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