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South Australia

(Encyclopedia)South Australia, state (2016 pop. 1,676,653), 380,070 sq mi (984,381 sq km), S central Australia. It is bounded on the S by the Indian Ocean. Kangaroo Island and many smaller islands off the south coa...

solar energy

(Encyclopedia)solar energy, any form of energy radiated by the sun, including light, radio waves, and X rays, although the term usually refers to the visible light of the sun. Solar energy is needed by green plants...

Queensland

(Encyclopedia)Queensland, state (2016 pop. 4,703,193), 667,000 sq mi (1,727,200 sq km), NE Australia. Brisbane is the capital; other important cities are Gold Coast, Toowoomba, Townsville, Rockhampton, Cairns, and ...

Sinai

(Encyclopedia)Sinai sīˈnī [key], triangular peninsula, c.23,000 sq mi (59,570 sq km), NE Egypt. It is c.230 mi (370 km) long and 150 mi (240 km) wide and extends north into a broad isthmus linking Africa and Asi...

Chihuahua, state, Mexico

(Encyclopedia)Chihuahua chēwäˈwä [key], state, 94,831 sq mi (245,612 sq km), N Mexico, on the border of ...

lynx

(Encyclopedia)lynx, name given to several related small, ferocious members of the cat family. All have small heads, tufted ears, and heavy bodies with long legs and short tails. All are primarily terrestrial, altho...

Sind

(Encyclopedia)Sind or Sindh sĭnd [key], province (2017 provisional pop. 47,886,051), c.50,000 sq mi (129,500 sq km), SE Pakistan, roughly coextensive with the lower Indus River valley and bounded by India on the e...

Silurian period

(Encyclopedia)Silurian period sĭlo͝orˈēən, sī– [key] [from the Silures, ancient tribe of S Wales, where the period was first studied; named by the British geologist R. I. Murchison], third period of the Pal...

Arabia

(Encyclopedia)Arabia ərāˈbēə [key], peninsula (1991 est. pop. 35,000,000), c.1,000,000 sq mi (2,590,000 sq km), SW Asia. It is bordered on the W by the Gulf of Aqaba and the Red Sea, on the S by the Gulf of Ad...

Hannibal, Carthaginian general

(Encyclopedia)Hannibal hănˈəbəl [key], b. 247 b.c., d. 183 or 182 b.c. Carthaginian general, an implacable and formidable enemy of Rome. Although knowledge of him is based primarily on the reports of his enemie...