Answer:
Temperature changes can also contribute to mechanical weathering in a process called thermal stress. Changes in temperature cause rock to expand (with heat) and contract (with cold). As this happens over and over again, the structure of the rock weakens. Over time, it crumbles.
Explanation:
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The name of the region crossed by the trans-siberian railroad is SIBERIA or the WILD EAST. The eastern capital is Irkusk and the railroad passes through the city making it a stepping-off between Mongolia and China. The railroad goes through Siberia and China.
Parts of Antarctica are considered to be deserts because it is too dry, there's no rainfall because it is too cold and the amount of snow that falls yearly is comparable with the amount of rains that falls in thee driest deserts on the planet, thus the lack of rain and snow makes it a proper desert, cold desert.
The answer is making maps