Question

Who was the first man to climb Mount Everest without oxygen??​

Answer 1

Answer;

Reinhold Messner and Peter Habeler were the person climbed Mount Everest without oxygen.

Explanation;

Sometime between 1 and 2 in afternoon on may 1978 Reinhold Messner and peter Habeler reached the summit of Mount Everest without the use of supplemental oxygen.Reinhold Andreas Messner made the first solo ascent of Mount Everest and along with Peter Habeler the first ascent of everest without oxygen.He was first climber to ascend all fourteen peaks over 8,000 m above the sea level.