Rock is composed of different combinations of minerals. Smaller rocks come from the breakage and weathering of bedrock and larger rocks. Soil is made partly from weathered rock, partly from plant remains--and also contains many living organisms. Benchmark 4C The Physical Setting: Processes that Shape the Earth Grades 6-8, page 73
The Celts (/ËkÉlts/ , occasionally /ËsÉlts/ , see pronunciation of Celtic) were people in Iron Age and Medieval Europe who spoke Celtic languages and had cultural similarities, although the relationship between ethnic, linguistic and cultural factors in the Celtic world remains uncertain and controversial.
The first recorded use of the name of Celts â as ÎºÎµÎ»ÏÎ¿Î¯ â to refer to an ethnic group was by Hecataeus of Miletus, the Greek geographer, in 517 BC, when writing about a people living near Massilia (modern Marseille).y the 6th century, however, the Continental Celtic languages were no longer in wide use. Insular Celtic culture diversified into that of the Gaels (Irish, Scottish and Manx) and the Brythonic Celts (Welsh, Cornish, and Bretons) of the medieval and modern periods.