Minas
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  • 1. ¿cómo se extraen y usan los minerales? < Capas de mineral Mina subterránea Mina superficial bancales Galerías horizontales pozo
  • 2. ¿cómo se extraen y usan los minerales? Contaminación de ríos y arroyos Los vehículos hacen mucho ruido. El tráfico contamina el agua, suelo y aire Se destruye la vegetación Se crean vertederos Las minas y el medioambiente <