Question: Ukusetshenziswa ngokweqile kwenhlabathi yokulima kubangela ukuphazamiseka kwezinhlelo ezimbalwa zoMhlaba kuleyo ndawo. Yikuphi kuloku okuyingxenye yomjikelezo wezinto eziphilayo, wendawo kanye nowamakhemikhali (biogeochemical cycle) okuphazamiseka kakhulu endaweni?
Options:
ukukhululelwa kwekhabhoni emkhathini
ukukhululelwa komoyampilo emkhathini
ukujikelezisa ifosiforu (phosphorus) emhlabathini
ukujikelezisa i-hydrogen emhlabathini
Answer: C