It mean poor, not good, bad. 
 
        
             
        
        
        
The cycle that is carried out during food chain and energy trophic level is the carbon cycle. The carbon cycle includes the giving off of the carbon dioxide of the organisms which is absorbed by plants through the stomata in aid for photosynthesis or food making. This  also includes the energy loss from one organism to another until the eventual decomposition of the animal
        
             
        
        
        
Answer:
engine exhaust, domestic heating, volcanic eruptions 
Explanation:
 
        
             
        
        
        
Hello! Is your Brainly glitching today?
        
                    
             
        
        
        
Say no, when they Peer pressure you still stand your ground and say NO