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Mountains are usually recognized because of their steep slopes and sharp or slightly rounded peaks or ridges. But many geologists only consider an elevated area to be a mountain if it includes 2 or more zones of climate and plant life at different altitudes. That means the climate becomes cooler and wetter with increasing elevation. In most parts of the world, a mountain must rise about 600 meters (2,000 feet - for the metrically challenged) above its surroundings, and to include 2 climate zones.
The side of the mountain away from the wind, called the leeward side is drier than the windward side. The dry area on the leeward side of a mountain range is called a rain shadow. Many of the worlds deserts lie in rain shadows
The side of the mountain away from the wind, called the leeward side is drier than the windward side. The dry area on the leeward side of a mountain range is called a rain shadow. Many of the worlds deserts lie in rain shadows