Petrobras avalia investir no mercado de etanol de milho.txt
Meet WasteShark The aquatic drone cleaning up waterways.txt
3:49Meet WasteShark: The resultado da mega sena concurso 2aquatic drone cleaning up waterwaysHundreds of millions of metric tonnes of plastic pollution are circulating in marine environments. It's a problem in canals, rivers, and oceans all around the world. 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