Answer:
most civilization s developed on river banks as it provided them with both water and food, that food being fish, it also meant that they could travel places quicker using things such as a boat or just a wooden plank, this was easy as trees tend to grow near water, as well as other plants, it provided them all the necessary aspects needed for both survival and development
Explanation:
hope this helps, sorry for not answering the first part, it is a bit harder to explain
