Ukuhlukaniswa kwemikhiqizo yegesi yemvelo
Igesi yemvelo iqukethwe ezindaweni ezinezimbotshana ezingaphansi komhlaba, okuhlanganisa igesi yasensimini kawoyela, igesi yenkundla yegesi, igesi yamalahle, igesi yentaba-mlilo yodaka kanye negesi ye-biogenic, kanti inani elincane layo livela emithungweni yamalahle. Iwuphethiloli wekhwalithi ephezulu kanye nomata eluhlaza wamakhemikhali...
buka imininingwane