Coal, oil, and, natural gas
        
                    
             
        
        
        
Answer:
i think is a but im not sure but i hope it helps.
Explanation:
During a baseball game, a player’s ball hit into the outfield is modeled by the equation h = –16t2 + 65t. A bird flying across the field follows the path modeled by the equation h = 8t + 20. Let t be the time since the ball is hit and h be the height.
 
        
                    
             
        
        
        
You could talk about pollution, trash on beaches...etc
        
             
        
        
        
Part of us humans daily life.
        
             
        
        
        
Answer:
C. development of vascular tissue for bulk flow
Explanation: