Answer:
British mountaineer Kenton Cool, who's climbed Everest 11 times, explains: "The Sherpas are so important. For one, they're the local people, so they know the culture, they know the area, they know the people.
"But when it actually comes to climbing the mountain they have this phenomenal energy and power on the mountain.
"So pretty much any western climber that may go to Everest will use Sherpas to help get the logistics in place, all the ropes, all the tents and things like that.
"They really are the backbone of any expedition.
Explanation:
