Multiple choice Who was the first man to climb Mout Everest without Oxigen? Nawang Gombu I.K. Bajaj Tenzing Norkay Phu Dorjee Reveal answer Fill a bubble to check yourself D Correct answer Explanation Phu Dorjee was the first person to climb Mount Everest without supplemental oxygen in 1984. While Tenzing Norgay and Nawang Gombu were famous Everest climbers, they used bottled oxygen for their ascents.