Mention the archaeological sources that tell us about man ‘s life in the early period?How did the changing environment affect the life of the early people?
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Ans: Sources found like, tools, caves and rock paintings tell us about the eating habits of early man, material used by him during that time and the activities performed. ... These paintings were drawn with great accuracy and skill.
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Four identical sized rods of different materials are sealed at the bottom of a vessel as shown in the figure. The same amount of wax is placed at the end of each of the rods. When the vessel is filled with boiling water, wax from which rod will melt the fastest
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