+High altitude describes land and air significantly above [Sea Level](/wiki/sea_level), where the air thins and [Oxygen](/wiki/oxygen) becomes scarce. This unique environment shapes landscapes, limits life, and profoundly affects human visitors.
+## See also
+- [Altitude Sickness](/wiki/altitude_sickness)
+- [Hypoxia](/wiki/hypoxia)
+- [Atmosphere](/wiki/atmosphere)
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