DNA- adenine, guanine, thymine, and cytosine 
RNA- adenine, guanine, uracil, and cytosine
So RNA contains uracil instead of thymine
        
                    
             
        
        
        
Because they are on a surface, 
        
             
        
        
        
Answer:
Bio Diversity in simplistic words is basically all life that is on earth (plants and animals) and their habitats and communities. 
Explanation:
Amazonia is one of the richest ecosystems on earth, a lot of places in the tropics also shows a lot of bio diversity. 
 
        
             
        
        
        
I think the answer you’re looking for is 
A.
-I hope this helps! Enjoy the rest of your day
        
             
        
        
        
The answer is <span>They decrease</span>