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Air is not conductor of electricity it is an
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- Because River valleys are most fertile region and the first human settlement were all done to do agriculture. The fertile soil in these regions were best suited for agriculture. Hence people first settled near river valleys.
- Early Stone Age Tools
- The Early Stone Age began with the most basic stone implements made by early humans. These Oldowan toolkits include hammerstones, stone cores, and sharp stone flakes. By about 1.76 million years ago, early humans began to make Acheulean handaxes and other large cutting tools.
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