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imaginary line that runs around the earth halfway between the North and South Poles; used as the starting point to measure degrees of north and south latitude
the imaginary line that divides the earth in the eastern and western hemisphere, at 0 degrees longitude
a continent (the third largest) in the western hemisphere connected to South America by the Isthmus of Panama
a continent in the western hemisphere connected to North America by the Isthmus of Panama
a large group of islands in the south Pacific including Melanesia and Micronesia and Polynesia (and sometimes Australasia and the Malay Archipelago)
the world's longest river, which flows northward through East Africa into the Mediterranean Sea
the world's second longest river in the world, which flows eastward through South America into the Atlantic Ocean
longest and biggest river in US that has its source in the Minnesota & its mouth in Louisiana
A river in southwestern Asia that flows through the eastern part of the Fertile Crescent
A river in southwestern Asia that flows through the southern part of the Fertile Crescent
a major mountain system of the United states and Canada, extending 3,000 miles from Alaska south to New Mexico
the world's longest mountain chain, stretching along the west coast of South America
Europe's highest mountains.extending in an arc from the Mediterranean coast to the Balkan peninsula
a mountain range in the eastern United States extending from Quebec to the Gulf of Mexico
a ship canal 40 miles long across the Isthmus of Panama built by the United States (1904-1914)
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