Q:
      
      
         
            
It is more difficult to walk on ice than on a concrete road because 
         
       
      
      
      
          
      
      
          Answer & Explanation
         Answer: A) there is very little friction between the ice and feet pressing it         
         
Explanation: It is the friction between the feet and the ground that helps us to walk. Without this friction we would slip and fall
       
      
      
      
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