It’s the science of mind and behavior
        
                    
             
        
        
        
Answer:
 He sold the Louisiana Territory to the United States to pay for his lavish lifestyle.
Explanation:
 
        
                    
             
        
        
        
The Paris Peace Conference<span> and the Treaty of Versailles. The </span>Paris Peace Conference<span> convened in January 1919 at Versailles just outside </span>Paris<span>. ... Negotiations at the </span>Paris Peace Conference<span> were complicated. The United Kingdom,</span>France<span>, and Italy fought together as the Allied Powers during the First World War.</span>
        
             
        
        
        
<span>A geographer is someone who studies the earth and its land, features, and inhabitants. They also examine phenomena such as political or cultural structures as they relate to geography. They study the physical or human geographic characteristics or both of a region, ranging in scale from local to global.</span>
        
                    
             
        
        
        
Answer:
To let people 18 years or older allowed to vote.