Africa
America
Asia
Europe
Oceania
AMERICA
Costa Rica Limón is the most culturally diverse of Costa Rica's provinces, housing a significant Afro-Caribbean and indigenous population.
USA Los Angeles (also called L.A.) is a city in southern California, in the United States. the second largest population of any city in the United States,
Cuba Mayabeque Province is named after the Mayabeque River the place believed to be the original location of Havana village.
Costa Rica Limón is the most culturally diverse of Costa Rica's provinces, housing a significant Afro-Caribbean and indigenous population.
Mexico - Guanajuato
Canada - Ottawa
USA - Alaska
Brasil - Rio de Janeiro
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South America
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The Caribbean
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Central America
America
The Americas, or America, also known as the New World is located in the Western Hemisphere. Along with their associated islands, they cover 8.3% of the Earth's total surface area (28.4% of its land area). The topography is dominated by the American Cordillera, a long chain of mountains that run the length of the west coast. The flatter eastern side of the Americas is dominated by large river basins, such as the Amazon, Mississippi, and La Plata. Since the Americas extend 14,000 km (8,700 mi) from north to south, the climate and ecology vary widely, from the arctic tundra of Northern Canada, Greenland, and Alaska, to the tropical rain forests in Central America and South America.
General Information
Subdivisions
• North America
• Central America
• The Caribbean
• South America
Most spoken languages
• Spanish
• English
• Portuguese
• French
Largest Cities
• Mexico City
• Säo Paulo
• New York City
• Los Angeles
Area
42,900,000 Kilometers
Population
963,927,760 hab.
Countries:
35 and 25 Dependencies
Density
22,1 hab./km²
Demonym
American,Pan-American.
America Videos
Aconcagua
Exploring the Amazon
Grand Canyon timelapse
Contents
1 History
1.1 Settlement
1.2 Pre-Columbian era
1.3 European colonization
2 Etymology and naming
3 Geography
3.1 Extent
3.2 Geology
3.3 Topography
3.4 Climate
3.5 Hydrology
3.6 Ecology
4 Countries and territories
5 Demography
5.1 Population
5.2 Largest urban centers
5.3 Ethnology
5.4 Religion
5.5 Languages
6 Terminology
6.1 English
6.2 Spanish
6.3 Portuguese
6.4 French
6.5 Dutch
7 Multinational organizations
8 See also
9 Notes
10 References
11 Further reading
12 External links
History
Earth, our home planet, is the only planet in our solar system known to harbor life. All of the things we need to survive are provided under a thin layer of atmosphere that separates us from the uninhabitable void of space. Earth is made up of complex, interactive systems that are often unpredictable. Air, water, land, and life—including humans—combine forces to create a constantly changing world that we are striving to understand.
Viewing Earth from the unique perspective of space provides the opportunity to see Earth as a whole. Scientists around the world have discovered many things about our planet by working together and sharing their findings.
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Formation
Chronology
Settlement
The earliest material found in the Solar System is dated to 4.5672±0.0006 billion years ago (Gya). By 4.54±0.04 Gya the primordial Earth had formed. The formation and evolution of the Solar System bodies occurred along with those of the Sun. In theory, a solar nebula partitions a volume out of a molecular cloud by gravitational collapse, which begins to spin and flatten into a circumstellar disk, and then the planets grow out of that along with the Sun.
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Chronology
Pre - Columbian era
Earth's atmosphere and oceans formed by volcanic activity and outgassing that included water vapor. The origin of the world's oceans was condensation augmented by water and ice delivered by asteroids, protoplanets, and comets. In this model, atmospheric "greenhouse gases" kept the oceans from freezing when the newly forming Sun had only 70% of its current luminosity. By 3.5 Gya, Earth's magnetic field was established, which helped prevent the atmosphere from being stripped away by the solar wind.
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