Answer:
In C4 photosynthesis, where a four-carbon compound is produced, unique leaf anatomy allows carbon dioxide to concentrate in 'bundle sheath' cells around Rubisco. This structure delivers carbon dioxide straight to Rubisco, effectively removing its contact with oxygen and the need for photorespiration
 
        
             
        
        
        
The answer is
Carbon because your dealing with coal
        
             
        
        
        
Well the car and the flames are emitting carbon dioxide