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2 days ago · Geographical treatment of North America, including maps and statistics as well as a survey of its geologic history, land, people, and economy. It occupies the northern portion of the ‘New World.’ North America, the world’s third largest continent, lies mainly between the Arctic Circle and the Tropic of Cancer.
- 2-Min Summary
Area: 9,419,321 sq mi (24,395,926 sq km). Population (2014...
- Geologic History
North America - Geology, Plate Tectonics, Erosion:...
- The People
North America - Indigenous, Settlers, Immigration: In global...
- Tectonic Evolution
North America - Tectonics, Evolution, Geology: North America...
- Grassland, Desert, Tundra
North America - Grassland, Desert, Tundra: Soils in this...
- Biological Resources
North America - Wildlife, Flora, Fauna: The coming of...
- The Boreal Forest
North America - Boreal Forest, Wildlife, Ecosystems: One of...
- Air Masses
North America - Air Masses, Climate, Weather: The...
- 1.3 Billion to 950 Million Years Ago
North America - Prehistoric, Geology, Plate Tectonics: The...
- 2-Min Summary
North America covers an area of about 24,709,000 square kilometers (9,540,000 square miles), representing approximately 16.5% of the Earth 's land area and 4.8% of its total surface area. It is the third-largest continent by size after Asia and Africa, and the fourth-largest continent by population after Asia, Africa, and Europe.
Jul 8, 2016 · The story of North America starts 750 million years ago, when the supercontinent Rodinia became unstable, breaking loose and forming what's now known as the west coast of America. Over the next few hundred million years, the supercontinent was being constantly battered by island chains, causing it to get bigger and bigger.
What is now called North America began to form in the first two and one-half billion years of Earth's history, a period of time called the Archean eon. Some geologists speculate that Earth that created the oldest parts of North America barely resembled the middle-aged planet on which we live. The planet of four billion years ago had cooled ...
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North America didn’t always have its familiar shape, nor its famed mountains, canyons, and plains: all of that was once contained in an unrecognizable mass, buried deep in Rodinia, a huge supercontinent that lay on the face of the Earth. Peter J. Haproff explains how it took millions of years and some incredible plate tectonics to forge the continent we know today.
May 6, 2024 · A continent is a large continuous mass of land conventionally regarded as a collective region. There are seven continents: Asia, Africa, North America, South America, Antarctica, Europe, and Australia (listed from largest to smallest in size). Sometimes Europe and Asia are considered one continent called Eurasia.
