I believe it was because the government was afraid that they might be spies for Japan, so they thought it was safer to keep them in one place so it would be easier to keep an eye on them. It also stemmed from racism due to the attack on Pearl Harbor and the U.S. fighting against the Japanese in the Pacific.
        
             
        
        
        
The environmental legislation signed by President Bush in 1990 set stricter standards on pollution from factories. This was done to prevent the negative results of pollution, since everything concerning that was getting worse and worse.
 
        
                    
             
        
        
        
Work means to work for a job and work hard around the house snd work hard to get what you want to achieve and sell services means to sell things
        
                    
             
        
        
        
When they started to build an empire around the Mediterranean but wasn't until about the 6th century I believe. Hope I helped