People at this stage continued to progress and survive due to activities such as gathering and hunting. Now the Stone Age period can be divided into pre-Stone Age, middle Stone Age and modern Stone Age. Now each period showed developments in some or the other way. Initially, fire was invented and the invention was quite phenomenal. Even today most explorers prefer to use stones to lit fire. The same fire was then used to sharpen instruments and objects. These inventions or so called developments are still the same. Maybe the instruments might be different. Next, man tried to make instruments mainly weapons for his everyday purpose. Weapons included axes, spears, scrapers, awls, knives and hand axes mainly made of stone. These weapons were enough to protect themselves from wild animals and enemies. The other purposes of these weapons were for hunting, fishing and butchering purposes.
The answer is B. Because this was their transport to get round coastlines and down rivers.
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The most commonly used methods are: published literature sources, surveys (email and mail), interviews (telephone, face-to-face or focus group), observations, documents and records, and experiments.
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Puerto Rico became U.S. Territory in 1898, when it was acquired from Spain after the Spanish-American War.
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1. B. Muckrakers 2. A, would work if it were talking about slavery, but the safe option would be D. Working Conditions. 3. D. The dangers of truancy for young boys in the slums.
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