I think the correct answer from the choices listed above is the first place. The important<span> skill that gave Africa's Bantu-speaking people an advantage over the nomadic hunter-gatherers they displaced would be ironworking. Hope this answers the question.</span>
Dr Jonas Salk developwd the vaccine to prevent polio.
The term that <span>best characterizes the jobs held by people in the middle class at the turn of the twentieth century would be "blue collar," since many people worked in factories during this time. </span>
I think the answer will be true.
