Reduce amount of time you take showers and use the bathroom, as well as stop leaks
        
                    
             
        
        
        
"C" The only way something will make a shockwave or a sonic boom is if it's traveling faster than the speed of sound
        
             
        
        
        
Answer:
A and D I think
Explanation:
It's not erosion, so that is out of the answer choices. And I doubt it is crystallization, so that is why I think it is A and D. (correct me if I am wrong.)
 
        
             
        
        
        
Answer:
 they have in common is fats