Answered
south africa is home to the groups, who are indigenous, or native, to the region.
anewer: zulu and xhosa

sorghum farming likely spread with the bantu migration. there is your answer i had to get it wrong to get this right so i hope ya'll enjoy!

are there any options you can choose from? ?

radiative zone

explanation    

radiative zone is the layer of the sun which energy is transferred away from the core by radiation. although, the core is the only part of the sun that produces an appreciable amount of heat through fusion. in fact, 99% of the energy produced by the sun takes place within 24% of the sun's radius.