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The prominence of this peak is the only one measured to be its elevation above sea level. The Khumbu Icefall can be encountered on this mountain's easiest path, the South Col. [end of sentence] Reinhold Messner was the first person to climb this mountain solo without the aid of oxygen. In 1856, the Great Trigonometric Survey computed the height of this peak, which is still (*) growing at a rate of 2.4 inches per year. This mountain near the city of Lukla is called in one language "Chomolungma." Tenzing Norgay, a Sherpa, helped Edmund Hillary climb this mountain in the Himalayas. For 10 points, name this highest mountain in the world.
The prominence of this peak is the only one measured to be its elevation above sea level.
Mount Everest (accept Chomolungma before mention; accept Sagarmatha)