listEning 3 "gEologyClAss"
{$mEDiAurl}
whAt is this DisCussion mAinly ABout
A、how to Exploit nonrEnEwABlE minErAl rEsourCEs
B、thE ExploitAtion oF minErAls in protECtED EnvironmEnts
C、pollution As A By-proDuCt oF minErAl ExploitAtion
D、thE EConomiC AnD EnvironmEntAl Costs oF Exploiting minErAls