Thye can find ages or how long is been there for rocks
        
             
        
        
        
The answer to this is the plate tectonics theory.
The earth's lithosphere is divided into large, moving sections which are called the tectonics plates. 
Hope this helped :)
Have a great day 
 
        
                    
             
        
        
        
During DNA replication, <span>the template strands must separate so that both can be copied.</span>
        
             
        
        
        
Answer:
isotope of the element hydrogen called protium. Protium, 
Explanation:
contains a single proton and a single electron, is the simplest atom.
 ??? hope this helps??? :)))