Non-ecumene means regions of the world that are uninhabited or very sparsely populated. Usually the regions of the world that are ecumenic and non-ecumenic are hard to draw as many regions which are densely populated merge with sparsely populated regions and the boundaries that they do share are not static, as they can change with time and movement of people.
<span>strike slip fault
A strike slip fault is when two tectonic plates are pressed together and slide past each other, often causing earthquakes. The two plates, the Pacific and north American, meet at the San Andreas fault. The shear stress - stress force parallel to the plane of motion of the material - of this plate movement caused the fault line and continues to exacerbate it.</span>
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In relation to the Andes mountain, the Atacama desert is located to the west. It actually lies between the pacific ocean and the Andes mountain. The Atacama desert is one of the driest place on earth. It is a rainless pleatue located in Southern America. The Atacama desert covers almost a 1000 kilometers. The desert mainly consists of salt lakes, rocks and sand. This is a place where rain occurred numerous years ago and so it is considered a totally rainless place. There is every probability that the Atacama desert is the oldest desert present in the earth.