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#13272 Bangla Language & Literature General Level 0

কোনো একটি নমুনা পানির BOD (Biochemical Oxygen Demand ) 3 mg/L হলে নমুনা পানিটি সম্পর্কে সঠিক?

  1. A খুবই ভালো
  2. B দূষণমাত্রা খারাপ
  3. C দূষণমাত্রা খুবই খারাপ
  4. D মোটামুটি ভালো
Answer: D - মোটামুটি ভালো

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