Answer:
Some inhabitants of north africa settled near the sahara because of more soil deposits and better farming lands and accross the sahara some people settled near the oasis or sea route due to trade routes for better economic structure. These are my words btw incase you want to use this paragraph.
Explanation:
In other/simplified words. The geography impacted where people could live, important trade resources such as gold and salt and how people could fend for themselves such as finding fertile land to farm foods.
Some people decided to settle near the banks for better trade opportunities and some people chose to live far out near river beds and oasis's to fend for themselves not really a settlement pattern but rough ideology/self interest/
