Yintoni ephosakeleyo malunga nokuba imbuyekezo yempazamo ye-UV ayichanekanga?
Isizathu:
Imbuyekezo yempazamo ayibekwanga ngokuchanekileyo .
Isisombululo:
1.}} Bukela ubude beBali loThintelo .
2. ubungakanani bovavanyo bubukhulu bomzobo, kwaye ubukhulu bemilinganiselo bubukhulu bomfanekiso ogqityiweyo .
