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 Celts arrived in Britain by the 4th or 5th century B.C. and Ireland by the 2nd or 3rd century B.C., and possibly earlier, displacing an earlier people who were already on the islands. The Gaels, Gauls, Britons, Irish, and Gallations were all Celtic people..