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Gas exchange

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Question 2

Occupational hazards in underground mining present significant risks to respiratory health.

a.

Describe how chronic inhalation of respirable coal dust damages the lungs and reduces the efficiency of gas exchange.

[5]
b.

Carbon monoxide (CO) is a highly toxic gas produced by incomplete combustion of diesel fuel in underground mining equipment. Explain how inhaling carbon monoxide reduces a miner's physical stamina and ability to perform heavy manual labour.

[3]

Gas exchange Questions

  1. IGCSE
  2. /Biology
  3. /Gas exchange