* Marginal sea is defined as a sea partially enclosed by islands, archipelagos, or peninsulas, adjacent to or widely open to the open ocean at the surface, and/or bounded by submarine ridges on the sea floor.
The Bay of Bengal is the largest Bay in the world. The Bay of Bengal and the Arabian Sea are part of the Indian Ocean . A bay is a body of water connected to an ocean or lake, formed by an indentation of the shoreline. A large bay may be called a gulf, a sea, a sound, or a bight.
The geographic region of Siberia makes up 77% of Russia's land, but only 27% of the population live there.
A wider definition of Siberia extends eastward towards the Pacific Ocean. There is also, politically, a Federal District of Siberia, which is made up of 12 Federal Subjects.
More information on the various definions of Siberia can be found on http://en.wikipedia.org/wiki/Siberia
The Himalayas contain some of the highest mountains in the world, including the highest, Mount Everest with a peak of 8,848 metres (29,029 ft) above sea level.
The Aral Sea was once one of the four largest lakes in the world. It has been steadily shrinking due to Russian irrigation projects. In 2007, it was only 10% of its original size.
The Caspian Sea is the world's largest enclosed body of water (by area).
At its narrowest, the Bering Strait is 82 kilometres (51 mi) wide. It is speculated that when the water level was lower, humans used it as a migration path from Asia to North America.
The Volga River is the longest river in Europe. Eleven of Russia's 20 largest cities, including the capital, Moscow, are in the Volga's watershed (drainage basin).
The Brahmaputra River is 2900 km (1800 mi) long, and is important for irrigation and transportation. It is prone to catastrophic flooding in the spring.
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