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Explanation:
There are hundreds of ethnic groups in Eastern Europe. The largest would have to be the Russians, the Ukrainians, the Romanians, the Greeks, and the Turks. Large immigrant ethnic groups would be such as Chinese, Afghani, Pakistani, and Indian.
The North Sea has very important natural resources such as oil and natural gas. Oil is a mixture of organic compounds, mainly hydrocarbons insoluble in water, it is also known as crude oil or simply crude and gas natural which is an important source of fossil energy released by its combustion.
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Glaciers not only transport material as they move, but they also sculpt and carve away the land beneath them. A glacier's weight, combined with its gradual movement, can drastically reshape the landscape over hundreds or even thousands of years. The ice erodes the land surface and carries the broken rocks and soil debris far from their original places, resulting in some interesting glacial landforms.