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Russia , officially known as both Russia and the Russian Federation is a country in northern Eurasia (Europe and Asia together). It is a semi-presidential republic, comprising 83 federal subjects. Russia shares borders with the following countries (from northwest to southeast): Norway, Finland, Estonia, Latvia, Lithuania (via Kaliningrad Oblast), Poland (via Kaliningrad Oblast), Belarus, Ukraine, Georgia, Azerbaijan, Kazakhstan, China, Mongolia and the Democratic People's Republic of Korea. It also has maritime borders with Japan (by the Sea of Okhotsk) and the United States (by the Bering Strait). At 17,075,400 square kilometres (6,592,800 sq mi), Russia is, in area, by far the largest country in the world, covering more than an eighth of the Earth’s land area; with 142 million people, it is the ninth largest by population. It extends across the whole of northern Asia and 40% of Europe, spanning 11 time zones, and incorporating a wide range of environments and landforms. Russia has the world's largest reserves of mineral and energy resources, and is considered an energy superpower. It has the world's largest forest reserves and its lakes contain approximately one-quarter of the world's unfrozen fresh water.
Canada is a country occupying most of northern North America, extending from the Atlantic Ocean in the east to the Pacific Ocean in the west and northward into the Arctic Ocean. It is the world's second largest country by total area and shares the world's longest common border with the United States to the south and northwest.
The land occupied by Canada was inhabited for millennia by various groups of Aboriginal people. Beginning in the late 15th century, British and French expeditions explored, and later settled along, the Atlantic coast. France ceded nearly all of its colonies in North America in 1763 after the Seven Years' War. In 1867, with the union of three British North American colonies through Confederation, Canada was formed as a federal dominion of four provinces. This began an accretion of provinces and territories and a process of increasing autonomy from the United Kingdom. This widening autonomy was highlighted by the Statute of Westminster of 1931 and culminated in the Canada Act of 1982, which severed the vestiges of legal dependence on the British parliament.
The People's Republic of China (PRC) , commonly known as China, is the largest country in East Asia and the most populous in the world with over 1.3 billion people, approximately one-fifth of the world's population. It is a socialist republic (specifically a people's democratic dictatorship according to its constitution) ruled by the Communist Party of China under a single-party system, and has jurisdiction over twenty-two provinces, five autonomous regions, four municipalities, and two largely self-governing Special Administrative Regions (Hong Kong and Macau). The PRC's capital is Beijing.
At approximately 9.6 million square kilometres (3.7 million square miles), the People's Republic of China is the world's third or fourth largest country by total area, and the second largest by land area. Its landscape is diverse with forest steppes and deserts (the Gobi and Taklamakan) in the dry north near Mongolia and Russia's Siberia, and subtropical forests in the wet south close to Vietnam, Laos, and Myanmar. The terrain in the west is rugged and high altitude, with the Himalayas and the Tian Shan mountain ranges forming China's natural borders with India and Central Asia. In contrast, mainland China's eastern seaboard is low-lying and has a 14,500-kilometre long coastline bounded on the southeast by the South China Sea and on the east by the East China Sea beyond which lies Taiwan, Korea, and Japan.
The United States of America (commonly referred to as the United States, the U.S., the USA, or America) is a federal constitutional republic comprising fifty states and a federal district. The country is situated mostly in central North America, where its 48 contiguous states and Washington, D.C., the capital district, lie between the Pacific and Atlantic Oceans, bordered by Canada to the north and Mexico to the south. The state of Alaska is in the northwest of the continent, with Canada to its east and Russia to the west across the Bering Strait. The state of Hawaii is an archipelago in the mid-Pacific. The country also possesses several territories, or insular areas, in the Caribbean and Pacific.
At 3.79 million square miles (9.83 million km) and with about 307 million people, the United States is the third or fourth largest country by total area, and the third largest by land area and population. The United States is one of the world's most ethnically diverse and multicultural nations, the product of large-scale immigration from many countries. The U.S. economy is the largest national economy in the world, with an estimated 2008 gross domestic product (GDP) of US $14.3 trillion (23% of the world total based on nominal GDP and almost 21% at purchasing power parity).
Brazil , officially the Federative Republic of Brazil (Portuguese: Republica Federativa do Brasil) Pt-br-Republica Federativa do Brasil.ogg listen , is a country in South America. It is the fifth largest country by geographical area, occupying nearly half of South America, the fifth most populous country, and the fourth most populous democracy in the world. Bounded by the Atlantic Ocean on the east, Brazil has a coastline of over 7,491 kilometers (4,655 mi). It is bordered on the north by Venezuela, Guyana, Suriname and the French overseas department of French Guiana; on the northwest by Colombia; on the west by Bolivia and Peru; on the southwest by Argentina and Paraguay and on the south by Uruguay. Numerous archipelagos are part of the Brazilian territory, such as Fernando de Noronha, Rocas Atoll, Saint Peter and Paul Rocks, and Trindade and Martim Vaz.
Australia , officially the Commonwealth of Australia, is a country in the southern hemisphere comprising the continental mainland (the world's smallest), the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans.N4 Neighbouring countries include Indonesia, East Timor, and Papua New Guinea to the north, the Solomon Islands, Vanuatu, and New Caledonia to the north-east, and New Zealand to the southeast.
For some 40,000 years before European settlement commenced in the late 18th century, the Australian mainland and Tasmania were inhabited by around 250 individual nations of indigenous Australians. After sporadic visits by fishermen from the immediate north, and European discovery by Dutch explorers in 1606, the eastern half of Australia was claimed by the British in 1770 and initially settled through penal transportation to the colony of New South Wales, founded on 26 January 1788. The population grew steadily in the following years; the continent was explored, and during the 19th century another five largely self-governing Crown Colonies were established.
India, officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the south, the Arabian Sea on the west, and the Bay of Bengal on the east, India has a coastline of 7,517 kilometres (4,700 mi). It is bordered by Pakistan to the west; People's Republic of China (PRC), Nepal, and Bhutan to the north; and Bangladesh and Myanmar to the east. India is in the vicinity of Sri Lanka, the Maldives, and Indonesia in the Indian Ocean.
Argentina, officially the Argentine Republic (Spanish: Republica Argentina, pronounced [re'pu?lika arxen'tina]), is the second largest country in South America, constituted as a federation of 23 provinces and an autonomous city, Buenos Aires. It is the eighth largest country in the world by land area and the largest among Spanish-speaking nations, though Mexico, Colombia and Spain are more populous. Its continental area is between the Andes mountain range in the west and the Atlantic Ocean in the east. Argentina borders Paraguay and Bolivia to the north, Brazil and Uruguay to the northeast, and Chile to the west and south. Argentina claims the British overseas territories of the Falkland Islands and South Georgia and the South Sandwich Islands. It also claims a part of Antarctica, overlapping claims made by Chile and the United Kingdom, though all claims were suspended by the Antarctic Treaty of 1961.
Kazakhstan , officially the Republic of Kazakhstan, is a country situated in Central Asia and Eastern Europe. Ranked as the ninth largest country in the world as well as the world's largest landlocked country, it has a territory of 2,727,300 km (greater than Western Europe). It is neighbored clockwise from the north by Russia, China, Kyrgyzstan, Uzbekistan, Turkmenistan, and also borders on a significant part of the Caspian Sea. The capital moved in 1997 to Astana from Almaty, Kazakhstan's largest city.
Sudan (officially the Republic of the Sudan) is a country in northeastern Africa. It is the largest country in Africa and in the Arab World, and tenth largest in the world by area. It is bordered by Egypt to the north, the Red Sea to the northeast, Eritrea and Ethiopia to the east, Kenya and Uganda to the southeast, the Democratic Republic of the Congo and the Central African Republic to the southwest, Chad to the west and Libya to the northwest. The world's longest river, the Nile, bisects the country from south to north.
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