Answer: all of them
Explanation: I think they’re all true
Hope this helps!
 
        
                    
             
        
        
        
I think its free nitrogen
        
             
        
        
        
Answer:
The roots of the plant grow into the cracks of the rock forcing the rock to break.
Explanation:
Hope this helps 
 
        
             
        
        
        
Answer: D
Explanation: Because new dog breeds are made when people mix two different breeds together to make another breed
 
        
             
        
        
        
Answer:
D. it is impossible to partially inherit a genetic trait
Explanation: