Expert-reviewed information about the Earth. For everyone.
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Earth's atmosphere
The Earth's atmosphere is an envelope of gas that surrounds the Earth and extends from the Earth's surface out thousands of kilometres, becoming increasingly thinner (less dense)... More »
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Jamaican dry forests
Jamaican dry forests is an ecoregion that covers a minority of the land area of the nation island of Jamaica, which ranks fifth among the Earth's islands in terms of endemic plant... More »
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Douglas-fir
The Douglas-fir (scientific name: Pseudotsuga) is a genus of tree that includes ar least five species found in North America and... More »
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European otter
The European otter (Lutra lutra) is a broadly distributed marine mammal found in both marine and freshwater systems over considerable portions of Europe, Asia and North Africa;... More »
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Flora of Napa County, California
Napa County is a rural county in northern California encompassing nearly 500,000 acres (200,000 hectares), about 0.5 % of the landmass of the state. It is located 25 miles (40... More »
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Petrochemicals
Petrochemicals are chemical products made from the hydrocarbons present in raw natural gas and petroleum crude oil. The largest petrochemical manufacturing industries are to... More »
Niger River
Last Updated on 2013-05-25 at 17:50
The Niger River is the third largest river in Africa, and the fourteenth longest river in the world. Rising in the Guinea Highlands, the river flows 4,200 kilometres through... More »
Northwestern thorn scrub forests
Last Updated on 2013-05-25 at 15:23
The Northwestern thorn scrub forests ecoregion represents a large expanse of degraded dry forest surrounding the Thar Desert. Neither exceptionally species-rich nor high in... More »
Pakistan
Last Updated on 2013-05-25 at 15:06
Pakistan is a nation of one hundred and ninety million people (mid-2013 est.) in southern Asia, bordering the Arabian Sea, between India on the east and Iran and Afghanistan on... More »
Sulu Archipelago rainforests
Last Updated on 2013-05-25 at 14:29
Although these islands represent transitional stepping stones from the island of Borneo to Mindanao in the Philippines, they have evolved their own distinctive faunas. The Sulu... More »
Turkish Straits
Last Updated on 2013-05-24 at 13:41
The Bosporus and Dardanelles are the Turkish Straits and divide Asia from Europe.
The Bosporus is a 17-mile long waterway that connects the Black Sea with the... More »
Dardanelles
Last Updated on 2013-05-24 at 13:41
The Dardanelles (formerly known as the Hellespont) is a 38 mile (61 km) long waterway that links the Sea of Marmara (and through the Bosporus Strait, the Black Sea) with the... More »
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