The Triangle Trade brought labor for a <em>very</em> cheap price, much much cheaper than indentured servants. They also began to use the triangle trade instead of enslaving the locals because the natives knew their way around the land and could run away easily.
        
                    
             
        
        
        
Answer: A small group of American settlers in California rebelled against the Mexican government
Explanation: I hope this helps :) You've got this!
 
        
                    
             
        
        
        
By forming various organizations.
The European Union, for example, unites Europe (Minus Britain these days) under one banner, thus preventing fighting.
A more direct example is the North Atlantic Treaty Organization. NATO protects the "North Atlantic" and Europe from terrorists and invading countries by using the combined military strength of multiple nations.
        
                    
             
        
        
        
Answer:
The economic and social changes of the early 20th century greatly influenced the North American and European worldview which, in turn, shaped the development of new styles of art. Artists began to question and experiment with themes of reality, perspective, space and time, and representation.