Answer:In fact, these early humans made a relatively wide variety of stone tools that were used for processing various plant and animal materials. Their tool kits included choppers, cleavers, and hammers as well as flakes used as knives and scrapers.
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The first one- The desert of the Arabian peninsula was difficult to cross
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World War I was a 'total war' as civilian societies, economies and labour were all seconded to the war effort. 2. Britain's Defence of the Realm Act gave its leaders extensive powers to reduce threats and harness the economy.