The romans used D) aqueducts
        
                    
             
        
        
        
Answer:
Rome fell because it was ultimately a Stratocracy, the reason Rome expanded so easily when it was smaller was because it was more profitable to expand outside and take resources, but when the cost of garissoning, defending, and harvesting that land outweighs the benefits, holding onto that land became unprofitable, and just giving it up would seem outrageous.
The power in Rome was more focused to the Consul, or Imperator
Rome was fighting in the east, the Sassanid Persians, In the North, Germanic tribes and visigoths, and in the Northeast, the Huns.
Explanation:
 
        
             
        
        
        
Answer:
A) James Whistler.
Explanation:
All of the following painters were associated with the Hudson River school except James Whistler.
 
        
             
        
        
        
Answer:
The 1970s were a period of discomfort for many Americans because of stagflation and unemployment. 
Explanation:
As a consequence of the 1973 oil crisis, it emerged as Arab revenge for American and Western support for Israel in the Yom Kippur War.
Through a cessation of production and supply, OPEC generated an exponential rise in the price of oil, the main raw material on which the western economies, mainly the United States, were based. With the rise in oil prices, the remaining prices of raw materials rose, due to the increase in transportation costs. This generated inflation, which in turn caused many companies, due to high costs, to cut wages, generating in turn a situation of economic stagnation at the social level. In other words, the population began to earn less money and spend more to buy the same products. This process, called stagflation (stagnation and inflation).