Answer:
 Ang pangalng pambalan Ng mundo 
A. planeta
 
        
                    
             
        
        
        
Answer: B) use of indentured servants, and later enslaved Africans, for agricultural labor
Explanation:
This answer fits the best. The other answers can be cancelled out.
Hope this helps!
 
        
             
        
        
        
The answer is A) central business district
        
             
        
        
        
Answer:
Dahil sa pagiging abuso at pagiging sakim Ng mga Tao.
 
        
             
        
        
        
It is so other scientists can do the experiment and see if the get the same or different results