The independent variable is the plant growth or how much the plants grow.
        
                    
             
        
        
        
Answer:
Pioneer species is the general name for the first organisms to move into a disturbed environment or to grow after a volcanic eruption covers an area with lava.
Hope it helps!
 
        
             
        
        
        
I believe the answer is true.
        
                    
             
        
        
        
By using the energy of sunlight, plants CAN convert carbon dioxide and water into carbohydrates and oxygen in a process called photosynthesis. 
Asphotosynthesis requires sunlight, this process only happens during the day