Explanation:
females have the set XX and males have XY
 
        
                    
             
        
        
        
A nucleic Acid is a long repeating chain of nucleotides
        
             
        
        
        
B. the rate will decrease. plants need carbon dioxide 
 
        
             
        
        
        
<span>C. Weathering breaks down rock and other material</span>
        
                    
             
        
        
        
Answer:
2000
Explanation:
It is very close between 1990 and 2000, but from what I can see, 2000 had the least precipitation.