Mountainous landscape. Computer artwork showing a mountainous coastal landscape. Clouds (upper centre) form over snow-topped mountains,and rain falls to swell rivers that erode the landscape and return water to the ocean. Areas with a high rainfall support vegetation such as grass and forests,while areas with little rainfall,such as deserts (yellow,right),are arid and barren. For this image representing the processes that sculpt the landscape,see image E500/0156,for the foehn wind,and image E500/0154,for the water cycle |