Answer:
Siberia
Step-by-step explanation:
Siberia. It is a vast region of Russia that covers almost all of northern Asia. It extends from the Ural Mountains to the Pacific Ocean, and from the Arctic Ocean to Kazakhstan, Mongolia and China. It occupies 56% of the territory of Russia.
With an area of 10 007 400 km2, 58% of the total area of Russia corresponds to Siberia. If Siberia were separated from Russia, it would be the largest country in the world.
Siberia can be divided into three important physiographic regions. The plain of Western Siberia occupies the area between the Urals and the Yenisei River, a large flat territory that is mostly covered by marshes. Between the Yenisei and Lena rivers are the central Siberian plateaus, whose altitude ranges between 300 and 1,200 meters. To the east there is a complex system of mountain ranges. The orographic line composed of the Yablonovi and Stanovói mountain ranges extends from the Chinese border to the Ojotsk Sea. To the southwest are the Sayan and Altai mountains, higher. To the northeast, where there is a chain of volcanic peaks, some of which are still active, extends the Kamchatka Peninsula.