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#59118 Bangla Language & Literature General Level 0

একটি 5 day BOD test DO 2.5 mg/L হ্রাস পেল। Sample যদি 100 গুন dilution করা হয়ে থাকে, তাহলে BOD5 = ?

  1. A 100 gm/L
  2. B 150 mg/L
  3. C 250 mg/L
  4. D 50 mg/L
Answer: C - 250 mg/L

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