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Whitney, Asa

(Encyclopedia)Whitney, Asa, 1797–1872, American merchant and transcontinental railroad projector, b. North Groton, Conn. He entered the mercantile business in New York City, acted as a foreign buyer for several y...

Tasmania

(Encyclopedia)Tasmania tăzmāˈnēə [key], island state (2016 pop. 509,965), 26,383 sq mi (68,332 sq km), SE Commonwealth of Australia. It is separated from Australia by the Bass Strait and lies 150 mi (240 km) s...

gyre

(Encyclopedia)gyre: see ocean.

trench

(Encyclopedia)trench: see ocean.

continental shelf

(Encyclopedia)continental shelf: see ocean.

euphotic zone

(Encyclopedia)euphotic zone: see ocean.

aphotic zone

(Encyclopedia)aphotic zone: see ocean.

pelagic zone

(Encyclopedia)pelagic zone: see ocean.

abyssal plain

(Encyclopedia)abyssal plain: see ocean.

littoral zone

(Encyclopedia)littoral zone: see ocean.