Answer: A.They contain plants that purify water.
 
        
                    
             
        
        
        
The state that affected by the occluded front is nyc
        
                    
             
        
        
        
Answer:
because plants faces and gets sunlight to grow 
 
        
                    
             
        
        
        
The surface area to the volume ratio gets smaller as the cell gets larger. If the cell grows beyond a certain limit not enough material will be able to cross the membrane fast enough to accommodate the increased cellular volume. 
Hope that helps