Aerobic or anaerobic atp exchange <span />
        
                    
             
        
        
        
6) humans
7) bacteria
8) caterpillars & rabbits
9) trout, and predators
10) It can be overfeeded , and everybody will die sooner or later
        
                    
             
        
        
        
Answer:
78 percent
Explanation:
The air in Earth's atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen.