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Great Dividing Range

(Encyclopedia) Great Dividing Range, crest line of the Eastern Highlands of Australia. For the most part it separates rivers draining into the Pacific Ocean from those flowing into the Indian Ocean…

Deep Sea Drilling Project

(Encyclopedia) Deep Sea Drilling Project, U.S. program designed to investigate the evolution of ocean basins by core drilling of ocean sediments and underlying oceanic crust. Funded by the National…

Is the Red Sea red?

The Question: Is the Red Sea red? If so, why? The Answer: Of course it's not actually red, but sometimes it appears that way. Located between…

DK Science: Algae

FOREST OF KELPTYPES OF SEAWEEDALGAL OVERKILLPHYTOPLANKTONFIND OUT MOREAlgae are simple organisms that make food from sunlight by photosynthesis, but lack the roots, stems, and leaves of proper…

Volcanoes of the World

Source: U.S. Dept. of the Interior, Geological Survey About 550 volcanoes have erupted on Earth's surface since recorded history; about 60 are active each…

Malay Archipelago

(Encyclopedia) Malay Archipelago, great island group of SE Asia, formerly called the East Indies. Lying between the Asian mainland and Australia, and separating the Pacific Ocean from the Indian…

Greenland Sea

(Encyclopedia) Greenland Sea, arm of the Arctic Ocean, off the northeast coast of Greenland between Svalbard and Jan Mayen Island. It is the main outlet of the Arctic Ocean to the Atlantic. Because…

DK Earth: Coasts

HOW DO WAVES CHANGE COASTAL LANDSCAPES? TIDESFIND OUT MORECoasts are border zones where the land meets the ocean. There is about 312,000 miles (502,000 km) of coastline worldwide. TIDES, waves,…

Digging to China and Other Adventures

Digging to China If you could dig to China, you'd have to begin in Chile or Argentina. If you started digging in Hawaii, you'd end up in the Kalahari Desert. If you started at the South Pole, you…

Challenger expedition

(Encyclopedia) Challenger expedition, British oceanographic expedition under the direction of the Scottish professor Charles Wyville Thompson and the British naturalist Sir John Murray. Taking place…