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Africa Kilimanjaro

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Uploaded on Sep 15, 2011

Africa is the world's second largest and second most populous continent, after Asia. At about 30.2 million km² (11.7 million sq mi) including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area.[2] With 1.0 billion people (as of 2009, see table) in 65 territories (including 54 recognized states), it accounts for about 14.72% of the world's human population.

Kilimanjaro is composed of three distinct volcanic cones: Kibo 5,895 m (19,341 ft); Mawenzi 5,149 m (16,893 ft); and Shira 3,962 m (13,000 ft). Uhuru Peak is the highest summit on Kibo's crater rim.

Kilimanjaro is a giant stratovolcano that began forming a million years ago, when lava spilled from the Rift Valley zone. Two of its three peaks, Mawenzi and Shira, are extinct while Kibo (the highest peak) is dormant and could erupt again. The last major eruption has been dated to 360,000 years ago, while the most recent activity was recorded just 200 years ago.

Although it is dormant, Kibo has fumaroles that emit gas in the crater. Scientists concluded in 2003 that molten magma is just 400 m (1,310 ft) below the summit crater.[citation needed] Several collapses and landslides have occurred on Kibo in the past, one creating the area known as the Western Breach.

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