Answer:
Nature
Explanation:
Because erosion happens in the nature.
 
        
                    
             
        
        
        
Answer:
NAD+ is reduced to NADH during glycolysis, pyruvate oxidation, and the citric acid cycle.
Explanation:
 
        
             
        
        
        
Answer:
This shows the interaction between the earth and sun.
Explanation:
- There is a variation in the amount of heat that reaches the different latitudes as the interaction between the sun and earth which firms different angles of incidence on the surface.  
- The rays of the sun are more concentrated in mid latitudes that is the tropics and are slanting towards the poles this due the tilt in axis of earth.  
- This variation lads the warm air to rise and reach the poles and similar the cold polar air reaches the tropics and develops a cycle of convective cells.  This leads to a latitudinal balance in temperatures.
 
        
             
        
        
        
A therapist seeing Cheri would attribute her anger to biological factors.
Her angry outbursts happen because of a malfunction in her body. Because her thyroid gland is overactive, this leads to her being angry from time to time if she doesn't take her medicine. Thus, these can only be biological factors, not social or psychological.