Answer:
One building block
Explanation:
The prefix mono means one
 
        
             
        
        
        
Answer:
by letting the oil float to the top and skimming it off
Explanation:
 
        
                    
             
        
        
        
mutation, gene flow and sexual reproduction 
 
        
             
        
        
        
Answer:
Rare materials 
Explanation:
These raw materials are to be used for proper development and industrialization of this society