the answer is D. Air will move from an area with higher pressure to an area with lower pressure :)
 
        
                    
             
        
        
        
A biodiversity 
Hope this helps
        
             
        
        
        
Rate of reaction will increase with the presence of a catalyst.
This is due to catalysts providing an alternative reaction pathway with lowered activation energy required, allowing an increased rate of reaction.
        
             
        
        
        
<span>A. can start in many different places on a sequence at the same time. </span>
        
                    
             
        
        
        
Answer: NSF International
Explanation: