Ummoba sisityalo esiqhelekileyo esithengiswa ngemali esisetyenziswa kakhulu kwimveliso yeswekile kunye ne-biofuel. Nangona kunjalo, kwiminyaka yakutshanje, ummoba ufunyenwe unezinye iindlela ezininzi ezintsha zokusetyenziswa, ngakumbi ngokubhekiselele ekuboleni, ukuchumisa, ukulondoloza indalo kunye nokuzinza. Eli nqaku lizisa ezi zinto...
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