The statement that [the city was well protected and repelled attacks by Invaders] best explains why Constantinople didn't fall until 1453. Since the people were armed and protected, invaders had several problems in breaking to the city at any point.
 
        
             
        
        
        
Because..the availability of coal resources in nearby belgium 
        
                    
             
        
        
        
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is there options ? or is it just to answer it however
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Answer: Redshift and blueshift describe how light shifts toward shorter or longer wavelengths as objects in space (such as stars or galaxies) move closer or farther away from us. When an object moves away from us, the light is shifted to the red end of the spectrum, as its wavelengths get longer. Hope this helps!
 
        
             
        
        
        
The best and most correct answer among the choices provided by your question is the second choice or letter B. In the time of Renaissance,  t<span>here was an increased interest in the art, architecture, and learning of classical Greece and Rome.</span>
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