Humans have difficulty breathing at high elevations because _______ than at low elevations. A) O₂ makes up a lower percentage of the air B) the temperature is lower C) the barometric pressure is higher D) the partial pressure of O₂ is lower E) the air is drier

Question

Quizplus · Accepted Answer

The partial pressure of oxygen (O2) is lower at high elevations, making it more difficult for humans to extract enough oxygen from the air to meet their metabolic needs. This leads to symptoms such as shortness of breath, fatigue, and headaches.

Humans Have Difficulty Breathing at High Elevations Because _______ Than