Chitoliro chobowola chimagwiritsidwa ntchito pobowola pachimake cha dipatimenti ya geological, yomwe ndi mtundu wagawo lopanda kanthu, lopanda mizere yozungulira chitsulo chachitali. Zitsulo dzenje zigawo ndi chitoliro chachikulu chonyamulira madzi, monga mayendedwe a mafuta, gasi, gasi malasha, madzi ndi zinthu zina zolimba, mapaipi, ...
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