The potential energy changes into kinetic energy. :)
        
             
        
        
        
Answer:
ATP is produced most efficiently by structure C.(mitochondria)
 
        
             
        
        
        
Answer:
Through photosynthesis, organisms could use sunlight to make food from carbon dioxide and water. 
They provided food for themselves 
Explanation:
 
        
             
        
        
        
1. The wavelength is the ratio of the wave's speed to its frequency in hertz or 1/s. This is shown below,
                           λ = s / f = (320 m/s)  / (300 1/s) = 1.07 m
The wavelength is approximately 1.07 m.
2. The frequency is the ratio between speed and the wavelength,
                        f = (330 m/s) / 0.45 m = 733.33 hertz
Read more on Brainly.com - 
brainly.com/question/1553993#readmore
 
        
             
        
        
        
I believe the answer is A.