Answer:There are total 118 elements in world as about marbale
Explanation:
 
        
             
        
        
        
Answer:
Start and end times; distance run.  
Step-by-step explanation:
Average speed = distance/time.
Kaila should record the distance run, the time she started, and the time she ended her run.
The difference between the start and end times gives the time for the run.
If she inserts her numbers into the formula, she will get her average running speed.  
 
        
             
        
        
        
The correct answer would be the first option. Material A having a smaller latent heat of fusion would mean that it will take only less energy to phase change into the liquid phase. Latent of heat of fusion is the amount of energy needed of a substance to phase change from solid to liquid or liquid to solid.
        
                    
             
        
        
        
Mixture......................