The 4 main points I’m not sure what u mean but if u refrase it
 
        
                    
             
        
        
        
When a plant is left in dark for several hours, it does not get sunlight. Isn't it?
When a plant does not get sunlight, it cannot prepare food for itself , i.e, photosynthesis does not take place. When it does not prepare food in the form of starch, it will test negative for it.
hope it helps!
        
             
        
        
        
Answer:
Just looking at these answers none of them seem particularly right as sunlight is used as the energy source to make glucose meaning that it is used as energy to bond hydrogen, carbon, and oxygen. The most right answer however i think is that it is converted into chemical energy.
 
        
                    
             
        
        
        
Cardiac output, specifically by a left or right ventricle in one minute.