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Wikipedia:Main Page history/2013 November 2

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A wave dashing on the seashore

The sea is the connected body of salty water that covers over 70 percent of the Earth's surface. It moderates the Earth's climate and has important roles in the water, carbon, and nitrogen cycles. It has been travelled since ancient times, while scientific oceanography dates broadly from Captain James Cook's 18th-century voyages. Winds produce waves and surface currents, and deep-sea currents carry cold water to every ocean. Large events such as submarine earthquakes can cause destructive tsunamis. Tides are caused by the rotation of the Earth and the gravitational effects of the Moon and the Sun. A variety of organisms live in the sea's many habitats, from the sunlit surface to the cold, dark abyssal zone, and from the Arctic to colourful tropical coral reefs. Life itself may have started in the sea. The sea provides humans with food including fish and shellfish, and enables trade, travel, mineral extraction, power generation, naval warfare, and leisure, though often at the cost of marine pollution. The sea has been important in human culture since Homer's Odyssey, appearing in literature, mythology, marine art, cinema, theatre, classical music and dream interpretation. (Full article...)

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November 2: All Souls' Day (Western Christianity); Day of the Dead in Mexico

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It is now November 2, 2013 (UTC) – Reload this page
Azure Kingfisher

The Azure Kingfisher (Alcedo azurea) is a small kingfisher found in Australia, Papua New Guinea, and parts of Indonesia. First described in 1802, seven subspecies are known.

Photo: JJ Harrison

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