Final answer:
A Sherpa typically carries multiple oxygen bottles to aid climbers at high altitudes, such as on Mount Everest, where low oxygen levels make supplemental oxygen essential for survival and sustained climbing effort.
Step-by-step explanation:
It is not unusual for a Sherpa to carry multiple oxygen bottles up a mountain for climbers. Sherpas are highly skilled mountaineers who assist climbers by carrying gear, including bottled oxygen, which is essential at high altitudes where oxygen levels are significantly lower. When climbing Mount Everest, where atmospheric pressure drops and available oxygen decreases, climbers depend on these oxygen supplies to breathe.
Considering the harsh conditions and the fact that climbers use oxygen at higher rates due to increased physical exertion and low temperatures, it's important to calculate the correct amount of oxygen needed for a sustained climb. While the exact number of oxygen bottles a Sherpa might carry can vary, it's clear that ensuring sufficient oxygen supply is critical in high-altitude mountaineering.