The answer to your question is c 
hope this helped
        
             
        
        
        
D. <span>The mass produced by the photosynthesis reaction is used by the plant to fuel respiration and is turned into carbon dioxide, water, and energy.</span>
        
                    
             
        
        
        
This sentence would most likely occur as the conclusion.
        
             
        
        
        
Answer:
Abiotic factors can all be measured to show the living conditions in an ecosystem.
Light meters can be used to measure light intensity. ...
Errors can be made when measuring light intensity by accidentally shading the light meter. ...
Soil moisture and soil pH meters are also available.
Explanation:
 
        
             
        
        
        
B hope this helps a lot :)