It may not be economically feasible to mine manganese nodules because of

0 votes
   
      disputable mining rights
      environmental concerns
      variable metal content
      difficult conditions to physically mine the material
      all of the above
asked Mar 12, 2013 in Earth Science by anonymous
    

1 Answer

0 votes
all of the above
answered Mar 15, 2013 by h20 ~Top Expert~ (6,320 points)



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