Respuesta :

Answer and Explanation:

  • An open pit method of mineral exploration is also known as open cast mining
  • it is a process of exploration of mineral from from an open pit
  • this method is used when deposits are found near the surface.
  • the process begins with upper layer of surface is removed and then after that all layers are removed until the we find the coal
  • After removal of coal it is processed and sold.

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