All of the following changed the American prairie except:

A.
barbed wire

B.
windmills and irrigation

C.
extermination of the buffalo

D.
heavy rainfall

Question

All of the following changed the American prairie except:
  
 
 

 
 

  

  A. 
  barbed wire   
   

 
 

  

  B. 
  windmills and irrigation   
   

 
 

  

  C. 
  extermination of the buffalo   
   

 
 

  

  D. 
  heavy rainfall

anonymous · Answer

Judging from the effects each choice would have on the environment, A is the correct answer.