The old water pipe at La Playa, Mexico is an example. it was man-made by more than the farmers in more than 4,500 years. It doesn’t only have an impact on the environment but also to the people. 
 
        
                    
             
        
        
        
Answer:
A russian revolution 
Explanation:
Russia didnt lose ww1 they took alot of losses and backed out to start their communist revolution 
 
        
             
        
        
        
Maslow study could be critized for reduced generalizability.
        
             
        
        
        
Environmental Protection Agency (EPA) establishes in 1970 to help us have a cleaner and healthier environment