the correct answer you are looking for would be letter B. formation of geological layers
hope this helps :)
 
        
                    
             
        
        
        
plants give off oxygen and take in carbon dioxide and animals take in oxygen and give off carbon dioxide. 
 
        
             
        
        
        
There will be mass migration of animals from Location B because of habitat loss.
 
        
                    
             
        
        
        
Answer:
Each electron carrier alternates between being reduced and being oxidized. 
 
        
             
        
        
        
As true pressure we denote the absolute pressure. <span>
Gauge pressure is the pressure above the ambient pressure </span>(it is zero-referenced against ambient air pressure). Absolute pressure <span> is equal to gauge pressure plus atmospheric pressure.</span>So, according to this the gauge pressure is always less than the absolute pressure.