Causes of Pollution: Biology MCQ App | IGCSE O Level Biology MCQ e-Book PDF
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IGCSE O Level Biology MCQs – Mock Test 42

Causes of Pollution: Biology MCQs with Answers PDF Download – Test 42

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Study Causes of Pollution Biology Multiple Choice Questions (MCQ) with Answers PDF for biology online assessments. Download the Causes of Pollution Biology MCQs PDF e-Book, Ch. 7-42 to learn IGCSE O Level Biology Practice Tests. Learn Effects of Human Activity on Ecosystem quiz answers PDF, Causes of Pollution Biology Multiple Choice Questions (MCQ Quiz) for biology online assessments. Download the Causes of Pollution: Biology MCQ App: Free IGCSE O Level Biology Learning App to learn causes of pollution: biology, heart: o level biology, circulatory system, size and position of kidneys test prep to explore evolution principles.

Free "Causes of Pollution: Biology MCQ" App Download (Android & iOS): Lives of organisms in ecosystem become threatened due to; MCQ with answers: industrialization, urbanization, rapid housing, and introduction of toxics in ecosystem. Practice Effects of Human Activity on Ecosystem Questions and Answers, Google Book to download free chapter for biology online assessments.

Causes of Pollution: Biology MCQ – Mock Test 42 PDF Download

MCQ 206: Lives of organisms in ecosystem become threatened due to:

  1. urbanization
  2. industrialization
  3. introduction of toxics in ecosystem
  4. rapid housing

MCQ 207: Blood in pulmonary arteries is at a lower pressure than blood in aorta allowing:

  1. tricuspid valve to shut
  2. bicuspid valve to shut
  3. gaseous exchange to effectively take place in lungs
  4. semi lunar valves to prevent backflow of blood

MCQ 208: When the heart relaxes,:

  1. person respires
  2. peristalsis movements occur
  3. bile is produced
  4. the heart gets filled with blood

MCQ 209: Vertebral column faces the:

  1. concave side of kidneys
  2. convex side of kidneys
  3. posterior side of kidneys
  4. inferior side of the kidney

MCQ 210: At intervals, along the length, the spinal cord:

  1. has myelin sheath
  2. has grey matter
  3. gives off spinal nerves
  4. branches off into dendrites

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