D.a political system with all economic and political power resting in the hands of the central government
Answer:
Gona is located in Ethiopia near the Awash River. The Oldowan tools which are the oldest known tools were found in Gona. Oldowan tools were used as choppers with heavy-duty scrapers and edged cores.
Oldowan tools were mostly used for primitive cutting and ancestors use them for hunting animals or cutting meat, cutting plants, or woodworking.
Answer:
It provided irrigation for the region and important flood control for run off
Explanation:
it provided provide power generation, irrigation, flood control, stream flow regulation for fish migration, navigation, and recreation
so the only answer option would be the third :)
Congress attempt to provide a legal basis for its authority