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 âCeltsâ refer to a people that thrived in both ancient and modern times. Today, the term often refers to the cultures, languages and people that are based in Scotland, Ireland, other parts of the British Isles and Brittany in France.he Celts were first referenced in texts about 2,500 years ago. Many of the ancient sources, however, were written by Greeks, Romans and other non-Celts. Evidence indicates that the Celts were spread out across a vast area of continental Europe.