Answer:
People with type O- blood are called universal donors because their donated red blood cells have no A, B or Rh antigens and can therefore be safely given to people of any blood group. ... Their plasma does not contain A or B antibodies and can be transfused safely to all blood types.
 
        
             
        
        
        
The answer is b. secede from the union.
        
             
        
        
        
Answer:
C.It gave them rich soil to grow food
Explanation:
The river is water and with water you can have rich soil due to the good water back then and you can grow really good food when you have good soil.
I hope it helps
 
        
             
        
        
        
The building is pink in color because of the sunset red granite used to build it in 1990