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tropics

(Encyclopedia) tropics, also called tropical zone or torrid zone, all the land and water of the earth situated between the Tropic of Cancer at lat. 231&fslsh;2°N and the Tropic of Capricorn at…

Tuvalu

(Encyclopedia) TuvaluTuvalut&oomacr;välˈ&oomacr; [key], independent Commonwealth nation (2015 est. pop. 11,000), 10 sq mi (26 sq km), composed of nine low coral atolls, formerly known as the…

sea level

(Encyclopedia) sea level, the level of the sea, which serves as the datum used for measurement of land elevations and ocean depths. Theoretically, one would expect sea level to be a fixed and…

Earth Day: Quizzes, Games, & Activities

Quizzes, Games, & Activities Try one of these quizzes about the environment or make an environmentally themed craft. Environment Quiz Global Warming Quiz Famous Environmentalists…

coral reefs

(Encyclopedia) coral reefs, limestone formations produced by living organisms, found in shallow, tropical marine waters. In most reefs, the predominant organisms are stony corals, colonial cnidarians…

frog

(Encyclopedia) frog, common name for an amphibian of the order Anura. Frogs are found all over the world, except in Antarctica. They require moisture and usually live in quiet freshwater or in the…

Arctic Ocean

(Encyclopedia) Arctic Ocean, the smallest ocean, c.5,400,000 sq mi (13,986,000 sq km), located entirely within the Arctic Circle and occupying the region around the North Pole. The Arctic basin was…

Philip Cooney, 2005 News

Bush administration official and former oil-industry lobbyist, resigned his post as chief of staff of the Council of Environmental Quality in June, two days after the New York Times reported…