The Earth's interior and the sun.
        
                    
             
        
        
        
Answer:
In addition to dinitrogen, other inorganic and organic forms exist in the soil as well.  It makes up 78 percent of the atmosphere but <u>cannot be used by plants. </u>It is taken into the soil by bacteria, some algae, lightning, and other means.
Explanation:
 
        
             
        
        
        
The regulation of the bodies internal environment is called homeostasis. And there are so many ways that affect homeostasis in the human body and to name three: first is the heat where we seat when we get too hot. Second, is the cold where we shiver when we get too cold and the third is the fluid intake where dehydration can kill.
        
             
        
        
        
Neither is correct actually