When Messner and Habeler Climbed Mount Everest Without Supplemental Oxygen

question 8

Multiple Choice

When Messner and Habeler climbed Mount Everest without supplemental oxygen, the scientists had to reevaluate their calculations that VO₂ max at the top of Everest was equal to resting metabolic rate (3.5 ml .kg^-1 . min^-1) . They found that the

• A) barometric pressure was higher than expected at the top of Everest.
• B) oxygen percentage was higher than expected at the top of Everest.
• C) air temperature was colder than expected.
• D) hemoglobin levels increased suddenly at that altitude for those who didn't use supplemental oxygen.

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