Which type of hypoxia is characterized by insufficient pressure of oxygen in the air?

The correct answer is characterized by hypoxia that occurs when there is an inadequate amount of oxygen available to breathe, typically due to altitude or reduced atmospheric pressure. At higher altitudes, the partial pressure of oxygen decreases, even though the percentage of oxygen in the air remains constant. This means that as a pilot ascends to greater heights, the lungs are unable to take in sufficient oxygen for the body’s needs, leading to symptoms of hypoxia.

This type of hypoxia can easily be experienced when flying at altitudes where supplemental oxygen may be required. Understanding this concept is critical for pilots to recognize the importance of oxygen availability and the physiological effects of altitude on human performance and safety.