Where does one of the hottest and driest areasof africa run along?

I am not sure is it atacama desert

The Atacama Desert is in South America.

Your question is worded strangely.

The world's largest desert is the Sahara, located in North Africa.

How did geography both help and hinder the peoples of Africa?

The Atacama Desert is actually not in Africa, but in South America, spanning across parts of Chile and Peru. One of the hottest and driest areas in Africa is the Sahara Desert, which runs along the northern part of the continent.

To find this information, you can conduct a quick internet search using keywords such as "hottest and driest areas in Africa." This will provide you with reliable sources, such as encyclopedias, geographical websites, or educational articles, that describe the Sahara Desert as one of the hot and arid regions on the African continent.