Terra Preta: Evidence of an ancient lost advanced civilisation in the Amazon - or just garbage?

The presence of fertile black soil biochar - known as terra preta - in the depths of the Amazon rainforest remains an enduring mystery that could point to an ancient lost advanced civilisation. Or is it just garbage?

#Amazon #LostCivilization #TerraPreta #ancient

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Intro/outro music: Yngling Thing - Ode to Uppsala

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