I think it’s number 2 but I could be wrong, I know 1,3, and maybe 4 are in living things
        
                    
             
        
        
        
Answer:
if you mean environmental degradation it is where the environment deteriorates(gets worse).
Explanation:
this happens through lack of air,water and soil, destruction of ecosystems and habitat destruction
 
        
                    
             
        
        
        
The answers i got are in blue, if one value of x has more than one value of y it is not a function, otherwise it is
 
        
        
        
The cell cycle is a series of stages of a cell growing and dividing. If the cells did not go through the process the result would be no reproduction. The cells will be shortly lived and die.