Answer an unit of measurement. 
For example: inch, hour, minutes, feet, meters.
        
             
        
        
        
Water doesn't absorb heat as quickly as sand
        
             
        
        
        
Answer:
A
Explanation:
A, the guy with 1 star provided the most noneducational response I've ever seen.
 
        
             
        
        
        
<span>Compare:  both RNA and DNA have 3 nitrogenous bases: Adenine Cytosine and Guanine. Also b</span>oth have a phosphate groups in their nucleotides<span> 
Contrast: </span>RNA is a polymer with a ribose AND a phosphate backbone. It has four different nitrogenous bases: adenine, guanine, cytosine, and uracil.
DNA<span> is a long polymer with deoxyriboses AND phosphate backbone. It also has  four </span>different<span> nitrogenous bases: adenine, guanine, cytosine and thymine. 
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Hope this helps
        
             
        
        
        
Answer is A. I kid chemistry a while back but I am pretty certain it is A.