Answer: B. Mechanical energy to electrical energy
Explanation:
 
        
             
        
        
        
Answer:
That science was able to find more things and discover a lot more things than 300 million years ago.
Explanation:
 
        
             
        
        
        
Answer:
 i think it is the middle one
B
 
        
                    
             
        
        
        
Answer: 
Robinson explains how she uses layers in fossilized corals to understand what the environment was like overtime. By finding out what mainly makes up each layer and finding out roughly how old each layer is, she can begin to understand what the chemical composition and climate was like when the coral pieces were alive