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O Level Biology Entrance Tests: Certification Test 1691

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MCQ: 1691

In humans, the sensitivity of respiratory diseases, eyes, and air passages is experienced due to

  1. carbon dioxide
  2. lead
  3. carbon monoxide
  4. sulphur dioxide

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Human Biology MCQ App (iOS & Android)

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O Level Biology MCQ App (Android & iOS)

O Level Biology MCQ App

College Biology MCQ App (Android & iOS)

College Biology MCQ App

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Zoology MCQ App