It is important to follow the principle of progression when
training in order to ensure that the body adapts well to stress by preparing
the muscles to respond to that stress. Progression involves increasing the load
progressively to avoid overly stressing your body
 
        
             
        
        
        
Answer:
The farmers in Sumer created levees to hold back the floods from their fields and cut canals to channel river water to the fields. The use of levees and canals is called irrigation, another Sumerian invention
Explanation:
 
        
             
        
        
        
Selma to <span>Birmingham affair
 JFK was the president who would have desired to end racism in America, having been a victim of racism himself, however who found himself tied by political and party affiliations to do something against racism. he also voted against Eisehower civil rights bill in 1957, but made a turn once he became Democratic nominee. 
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