The correct answer is A. They enriched the soil and helped farmers grow supplies surpluses.
Explanation:
The Tigris and Euphrates are two rivers located in a zone that is called the Fertile Crescent in which the first civilization developed. This can be explained as the existence of this river in this area made the soil rich and therefore it was easier to grow different crops, also the water of the river was used to irrigate crops through canals, which allow people to stay in one area and become a civilization rather than being nomads and created supplies surpluses that made people able to develop a culture and later trade products in land or through the river. Therefore, the role the Tigris and Euphrates river played in the development of civilization is that they enriched the soil and helped farmers grow supplies surpluses.
The correct answer is C: to protect all concerned with the trade industry thus insuring its continuation if not D:to protect the citizenry from foreign traders who were known to be brutal and barbarous
Many slaves died during the middle passage due to the fact they were chained together in boats and were exposed to disease infection and were rarely fed
