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Grand Canyon
(Encyclopedia) Grand Canyon, great gorge of the Colorado River, one of the natural wonders of the world; c.1 mi (1.6 km) deep, from 4 to 18 mi (6.4–29 km) wide, and 217 mi (349 km) long, NW Ariz. The…Cambrian period
(Encyclopedia) Cambrian period [Lat. Cambria=Wales], first period of the Paleozoic geologic era (see Geologic Timescale, tablegeologic timescale, table) extending from approximately 570 to 505…ulcer
(Encyclopedia) ulcer, open sore or circumscribed erosion, usually slow to heal, on the skin or mucous membranes. It may develop as a result of injury; because of a circulatory disturbance, e.g., in…Pleistocene epoch
(Encyclopedia) Pleistocene epochPleistocene epochplīˈstəsēn [key], 6th epoch of the Cenozoic era of geologic time (see Geologic Timescale, tablegeologic timescale, table). According to a…2014 Science News: Where the Wind Bloweth
The challenge of climate change at home and abroad Kiribati Related Links 2014 Year in Review Ebola Outbreak Enterovirus Cold…Pliocene epoch
(Encyclopedia) Pliocene epochPliocene epochplīˈəsēn [key], fifth epoch of the Cenozoic era of geologic time (see Geologic Timescale, tablegeologic timescale, table), from 5.1 to 2 million years ago.…willow
(Encyclopedia) willow, common name for some members of the Salicaceae, a family of deciduous trees and shrubs of worldwide distribution, especially abundant from north temperate to arctic areas. The…November Current Events 2023: Science & Technology News
Top of Page World News | U.S. News | Disaster News | Current Events This Week The world is a very busy place, and it's hard to stay on top of everything. Infoplease has got you covered. Here are…Saint Vincent and the Grenadines Department of State Background
U.S. Department of State Background Note Saint Vincent and the Grenadines Index: People History Political Conditions Foreign Relations PEOPLE Most Vincentians are the descendants of African…root, in botany
(Encyclopedia) CE5 Longitudinal cross section of a root root, in botany, the descending axis of a plant, as contrasted with the stem, the ascending axis. In most plants the root is underground,…Trending
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