Content

http://www.calctool.org/CALC/phys/default/pres_at_alt
http://www.engineeringtoolbox.com/air-altitude-pressure-d_462.html

Plants and Animals:
http://wiki.answers.com/Q/What_plants_grow_on_Mount_Everest
http://library.thinkquest.org/10131/nepal_park_everest.html

Ecology and Fold mountains:
http://en.wikipedia.org/wiki/Mountain#Ecology

animals+plants detail:
http://edugreen.teri.res.in/explore/life/himalay.htm
http://library.thinkquest.org/10131/javamenu_final.html

BBC Source:
http://www.bbc.co.uk/nature/life/Himalayan_marmot
http://www.bbc.co.uk/nature/places/Himalayas
http://www.youtube.com/watch?v=fWtE4jT5c7o