Practice question

What is hypoxia, and why is it a significant hazard to aviation personnel?

A state of oxygen deficiency in the body's tissues, which impairs cognitive function, decision-making, and physical performance
An excess of carbon dioxide in the lungs caused by rapid breathing
The physical swelling of joints due to low cabin humidity
A form of visual color blindness caused by cabin lighting

Answer: A — A state of oxygen deficiency in the body's tissues, which impairs cognitive function, decision-making, and physical performance

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