Answer:
Economic, Environmental and political.
Explanation:
Permanent move from one country to another due to various reasons is called migration. Throughout history people has moved from one place to another to explore their world. Migration has impacted world culture since its beginning. 
There are three main causes for migration, It falls into three categories: Economic, Environmental and political. While speaking of migrations experts talk about push and pull factors. 
The factors that push people out of an area are called push factors while the factors that pull people toward an area is called pull factor. Ex. while talking about the environment lack/depletion of natural resources can be a push factor while availability of land at some other place can be a pull factor.
 
        
             
        
        
        
Answer: 
Explanation:
The purpose of payroll taxes is to get the funding needed to operate social security and Medicare. The money from payroll taxes is also used for unemployment benefits and disability benefits.
 
        
             
        
        
        
Answer:
3, the use of bartering to trade goods instead of money. 
Explanation:
 
        
                    
             
        
        
        
Answer:
From my experience, it is more difficult to slide a crate on a shag carpet because of the material the carpet is made out of. When it is a tile floor it will just slide with ease.
Explanation:
 
        
                    
             
        
        
        
The American Indian Defense Association (AIDA) was an organization founded in 1923 by social worker John Collier.