You want to divide 10 by 4 to get the number of hours it will take for the water to get to the springs, which is 2.5, so it would take the water 2.5 hours to revel to it’s spring
        
             
        
        
        
Answer:
b,d,f
Explanation:your welcome give brainilest
 
        
                    
             
        
        
        
Answer: 
<em>In equipment reliability, the likelihood that a given event will occur</em>
Explanation:
 
        
             
        
        
        
This is called 
Nuclear fusion
Example is two hydrogen atoms fuse to form a helium atom
Where some of the atoms of hydrogen turn in to energy 
So the answer is A
        
                    
             
        
        
        
1023 molecules or atoms depending on substance