A- metamorphic rock. 
metamorphic rocks are created through heat and pressure
        
                    
             
        
        
        
The answer is <span>aqueduct.</span>
        
             
        
        
        
Mortality, or death rate is a measure of the number of deaths in a particular population, scaled to the size of that population, per unit of the time. In this case a factor that would result to an increased mortality rate in a population due to increased competition of water will be the density-dependent factor.