Free O Level Biology Learning App – Pollution: BOD and Eutrophication MCQ e-Book PDF

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O Level Biology MCQs – Certification Test 1623

Pollution: BOD and Eutrophication MCQ (Question 1623) – Learning App & e-Book Download

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MCQ 1623: Fish die as a result of water pollution due to:

  1. less BOD
  2. more tolerance range for oxygen
  3. narrow tolerance range for oxygen
  4. zero tolerance range for oxygen
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Pollution: BOD & Eutrophication MCQ App & e-Book – O Level Biology Exam Prep

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