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mantle
(Encyclopedia) mantle, portion of the earth's interior lying beneath the crust and above the core. No direct observation of the mantle, or its upper boundary, has been made; its boundaries have been…The Great 1906 San Francisco Earthquake
Among the worst natural disasters in U.S. history by Chris Frantz San Francisco, California, April 1906 Related Links Almanac: San Francisco San Francisco Census Facts: 1906 Versus…The Mighty Tectonic Plates Quiz
This geography quiz has a range of topics related to tectonic plates, including different types of plate boundaries, the composition of the Earth, plate tectonic theory, and the impact of tectonic…World Land Areas and Elevations
The following table lists the approximate land area, highest elevation, and lowest elevation of the world's continents, including Africa, Antarctica, Asia, Australia, Europe, North America,…The Study of Geography
Subjects » Geography » History » Language Arts » Mathematics » Science » Social Studies Homework Skills Writing | Research Speaking & Listening Studying Reference Sources…2002 National Medal of Science Recipients
Leo L. Beranek, retired engineer, for designing communications and noise-reduction systems for World War II aircraft. He has also written about the acoustics of concert halls. John I.…Homework Center: World Geography
Subjects » Geography » History » Language Arts » Mathematics » Science » Social Studies Homework Skills Writing | Research Speaking & Listening Studying Reference Sources…Devonian period
(Encyclopedia) Devonian periodDevonian perioddĭvōˈnēən [key], fourth period of the Paleozoic era of geologic time between 408 and 360 million years ago (see Geologic Timescale, tablegeologic…The Seven Continents
What is a continent? A continent is defined as a large unbroken landmass completely surrounded by water, although in some cases continents are (or were in part) connected by land bridges. The…Everest Trivia
Amaze your climbing friends! Stump the Sherpas! Little known facts about Everest by Borgna Brunner A view of Everest from Dudh Kosi, the highest river in the world. (Source: Nelson Chenkin)…Trending
Here are the facts and trivia that people are buzzing about.
