IGCSE O Level Biology Study App | Pollution: BOD and Eutrophication MCQ e-Book PDF

IGCSE O Level Biology MCQs (O Level) From Textbook

IGCSE O Level Biology MCQs – Mock Test 286

Pollution: BOD and Eutrophication MCQs with Answers PDF Download – Test 286

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Pollution: BOD & Eutrophication MCQs – Mock Test 286 PDF Download

MCQ 1426: The word BOD refers to the:

  1. Bidding of Dermatology
  2. Binding of Dirt
  3. Biochemical occupied Date
  4. Biochemical Oxygen demand

MCQ 1427: Self pollination is not possible in:

  1. dioecious plants only
  2. pawpaw only
  3. flowers
  4. dioecious plants and pawpaw

MCQ 1428: Glycogen (C24H42O21) is a type of:

  1. Monosaccharide
  2. Disaccharides
  3. ATPs
  4. Polysaccharides

MCQ 1429: Conserving metals may decrease:

  1. environmental pollution only
  2. waste disposal only
  3. minerals in the crust
  4. environmental pollution and waste disposal

MCQ 1430: Phagocytosis refers to:

  1. eating foreign particles
  2. the formation of pus
  3. gives hemoglobin red color
  4. can result in a persons death

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