Its summit Mount Everest height from sea level is very. The air pressure is low. There is a unique cold air in winter. There is a snow-covered mountain peaks throughout the year. The path over to reach the base camp area (approx. 5,364 meters above sea level) of the Nepal side, it also had to hike up, which didn't have the convenience to and from base camp, the greater danger is even greater, because the higher the air pressure, the more low. There is a very strong wind, and little oxygen. If no luck, it may be exposed to a Blizzard. Which means that the loss of life, as well.
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