O Level Biology MCQs (O Level) From Textbook

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O Level Biology MCQs – Certification Test 1200

Pollution: Carbon Monoxide Quiz (Question 1200) – App & e-Book Download

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MCQ: 1200

Carbon monoxide (CO) causes

  1. numbness of brain
  2. secretion of adrenaline
  3. weakens the wall of alveoli
  4. risk of atherosclerosis

Pollution: Carbon Monoxide Textbook Tests – O Level Biology App & e-Book Quiz

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Pollution Carbon Monoxide Quiz App (iOS & Android)

Pollution Carbon Monoxide Quiz App

O Level Biology Quiz App (Android & iOS)

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