Waves are most commonly caused by wind. Wind-driven waves, or surface waves, are created by the friction between wind and surface water. As wind blows across the surface of the ocean or a lake, the continual disturbance creates a wave crest. These types of waves are found globally across the open ocean and along the coast. 
        
                    
             
        
        
        
It is not possible for two species with the same niche to coexist. one species will eventually drive the other into extinction
        
             
        
        
        
Natural fertilizer makes plants grow healthier but artificial fertilizer with chemicals makes it grow faster