What is knapping?, Building a shelter from branches, Shaping stone tools by striking rocks together, Starting a fire with sticks, Preserving food by drying it, Why was fire so important to early humans?, It was only useful at night for light, It was used only for long-distance signals, It was used only to make pottery, It provided warmth, cooked food, and protected against predators, What is a hunter-gatherer?, A farmer who grows crops, A person who only fishes, Someone who hunts animals and gathers wild plants to survive, A leader of a permanent settlement, When did the first stone tools appear?, About 3.3 million years ago, About 300,000 years ago, About 66 million years ago, About 10,000 years ago

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