\-Major rivers have headwaters in mountains
\-people rely on fresh water that collects in mountainous regions
\-Hydropower from the mountains make up 20% of the world’s entire electricity
\-Mountain forests capture and store rainfall and moisture
\-Maintain water quality and regulates river flow
\-Mountains provide timber and other products
\-Reduce erosion and downstream sedementation
\-The geological forces that helped bring mountains up have also helped to concentrate and assemble minerals
\-Mountain mines are major sources of the world’s ores and minerals