Mount Everest is not a volcano. It is simply a mountain.
The only pollution on Mount Everest is the rubbish that climbers leave behind.
Mount Everest is made up of sedimentary rocks.
The five most common illnesses on Mount Everest are: High altitude Pulmonary Edema (HAPE) High Altitude Cerebral Edema (HACE) Frostbite Hypothermia Snow Blindness You can learn about these in the article at the link given.
a 'fold' mountain
There is no food.It is way to cold
Mount Everest has alpine vegetation up to about 13000 ft, thereafter snow cover starts.