Read the text and fill in the gaps.

As the world’s ... country, Russia occupies one-tenth of all the land on ... . It spans 11 time ... across two continents \(Europe and Asia\) and has shores on three ... \(the Atlantic, Pacific and Arctic Ocean\).
Much of Russia is made up of rolling, treeless plains called ... . The ... of Siberia, which occupies three-quarters of Russia, is dominated by sprawling pine forests called ... .
Russia has around 100,000 rivers, including some of ... and most powerful in the world. It also has many lakes, including Ladoga and Onega \(Europe’s two largest lakes\), and ... , which contains more ... than any other lake on Earth.