Answer: have a subject and a verb
Explanation:
 
        
                    
             
        
        
        
<span>Glass is transparent meaning light passes through it and therefore you can see through it, but some light reflects back and if the surface is very smooth as glass often is then the light reflected back can be seen as a reflected image.</span>
        
             
        
        
        
I have the exact same question, any chance you figured it out since you posted this?
        
             
        
        
        
Heat is the answer but I need to use 20 characters to post :)