Answer:
power=work done÷time taken
2×5=10
10÷10=1
ans 1J per second
 
        
             
        
        
        
D.to bring light together
        
                    
             
        
        
        
It is C. A description goes into the details about something, and an explanation is a statement that clarifies something, generally a question.
        
             
        
        
        
A sign of genetic mutation is a missing finger or an extra limb of some sort. Also people who study the human genome can trace gene pairs that are not complete or mixed up which can  cause genetic mutations.
        
                    
             
        
        
        
Internal and external combustion engines are two types of heat engines: they convert thermal energy into mechanical energy. The main difference between internal and external combustion engine is that in internal combustion engines, the working fluid burns inside the cylinder, whereas in external combustion engines, combustion takes place outside the cylinder and heat is then transferred to the working fluid.