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carbon cycle

(Encyclopedia)CE5 Carbon cycle carbon cycle, in biology, the exchange of carbon between living organisms and the nonliving environment. Inorganic carbon dioxide in the atmosphere is converted by plants into sim...

power, electric

(Encyclopedia)power, electric, energy dissipated in an electrical or electronic circuit or device per unit of time. The electrical energy supplied by a current to an appliance enables it to do work or provide some ...

Whittier, John Greenleaf

(Encyclopedia)Whittier, John Greenleaf hwĭtˈēər [key], 1807–92, American Quaker poet and reformer, b. near Haverhill, Mass. Whittier was a pioneer in regional literature as well as a crusader for many humanit...

fern

(Encyclopedia)CE5 Life cycle of a fern fern, any plant of the division Polypodiophyta. Fern species, numbering several thousand, are found throughout the world but are especially abundant in tropical rain fores...

mojarra

(Encyclopedia)mojarra mōhärˈə [key], common name for a member of the family Gerreidae, small tropical food fishes. The many American species are found chiefly off the S Atlantic coast but also along the Pacific...

Krasnoyarsk

(Encyclopedia)Krasnoyarsk krəsnəyärskˈ [key], city (1989 pop. 913,000), capital of Krasnoyarsk Territory, W Siberian Russia, on the Yenisei River. A major river port and rail center, it has industries producing...

Kigali

(Encyclopedia)Kigali kēgäˈlē [key], city (1997 pop. 330,000), central Rwanda, capital of Rwanda. It is the country's main administrative and economic center. The city has an international airport and road acces...

Naberezhnye Chelny

(Encyclopedia)Naberezhnye Chelny nəbĭryĕzhˈēə chĭlnēˈ [key], city (1989 pop. 501,000), in NE European Russia. Once a small town named Chelny, it became Naberezhnye Chelny in 1930. From 1982 to 1988 the cit...

gaillardia

(Encyclopedia)gaillardia gālärˈdēə [key], any plant of the genus Gaillardia of the Asteaceae family (aster family), including annual, biennial, and perennial herbs with showy heads of red and/or yellow ray flo...

Derg, Lough

(Encyclopedia)Derg, Lough lŏkh dĕrg [key], in Ireland. 1 Expansion of the Shannon River, 23 mi (37 km) long and 1 to 5 mi (1.6–8 km) wide, W central Republic of Ireland. On the lake is the republic's first (192...