Explain why the kingdoms of the Sahel plays such a high importance uncle describe the location of most of the regent gold mines

one way archaeology us understand the past is through the material objects it finds, allowing us to know what was being used, and when. for example a dig recently found a flute, believed to be the oldest musical instrument found to date.

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when you sing louad enough the vibration of you voice is able to shatter glass so yes vibration is your answer

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answer; sex,attention,sleep,thirst, and hunger and many other vitals;