Fill in the Blanks SuperlativesOnline version complete the text about: The Mount Everest by Closer English 1 attractive exciting most biggest toughest interesting dirtiest expensive most least highest windiest coldest Most people know that Mount Everest is the mountain in the world . However , there is another fact that many people don ? t know : it has become one of the mountains in the world . Mount Everest is one of the and most mountains to climb on Earth . It is not the or the place on Earth , but it comes close ! These challenges make it one of the most mountains for serious climbers . Since1952 , over 3500 climbers have reached the top . Unfortunately , of them have left equipment and trash on the mountain . In fact , trash is now one of the threats to the environment on Mount Everest . Local organizations have brought tons of trash down from the mountain . One of the most projects handed over more than a ton of tin cans , glass bottles , and old climbing tools to artists in Nepal . The artists used the trash to create works of art . Then , they sold the art to raise money for local charities . 1 The expensive work of art cost $17 , and the one cost $2400 .