Final answer:
The elevation of Cho Oyu above sea level is represented by the integer 26,864. It is less than Mount Everest, which is 29,029 feet tall, and the elevation figure is a positive number because it is a height above sea level.
Step-by-step explanation:
The elevation of Cho Oyu, which is 26,864 feet above sea level, is represented by the integer 26,864. For comparison, Mount Everest is recognized as the highest peak on Earth with an elevation of 29,029 feet. Elevation figures for mountains are expressed in feet above sea level. Cho Oyu's elevation is a positive integer because it indicates a height above sea level.
Climbers face specific challenges at high altitudes, such as on Mount Everest or Cho Oyu, due to the thinning atmosphere. For instance, the boiling point of water decreases as elevation increases, and oxygen levels are significantly lower than at sea level, making climbing these peaks without supplementary oxygen difficult.