Convection currents in magma drive plate tectonics. The answer is true. 
 
        
                    
             
        
        
        
Pollution :) Since Abiotic means non living. 
Bacteria: Living
Food (worms or smaller fish): Living
Predators: Living
Pollution (dirt, trash, or other stuff): Non Living
 
        
                    
             
        
        
        
Explanation:
HIV virus is an RNA virus 
 
        
             
        
        
        
That is when extinction occurs. Hope I helped!