Answer:Assyrian Empire
Aqueducts in Mesopotamia
The first sophisticated long-distance canal systems were constructed in the Assyrian Empire in the 9th century BCE and incorporated tunnels several kilometres in length. These engineering feats permitted the aqueducts to be constructed in a more direct line between source and outlet.
Explanation:
 
        
                    
             
        
        
        
Answer:
B
Explanation:
everything else is more important 
 
        
             
        
        
        
Answer:
The answer is "clergy".
Explanation:
The first estate was made up of its Roman Catholic clergy, their smaller community in the Estates-General, ever though. Its clergy, called rabbis, clerics, Muslim leaders, as well as other names, practice faithfully, but give the representatives of an association religious and ethical direction. They maintain the practices and beliefs of a particular religious belief or title.