Answer:
I need the points :((((((
 
        
             
        
        
        
Answer:
<em>b. Generally, the quality of life is directly related to an area's energy use per person.</em>
Explanation:
The quality of life is directly proportional to the amount of energy being used. The more the amount of energy the more the quality of life will be enhanced. For example, the life of a person who uses much electricity and fuels will be better than the person who cannot use electricity or fuel. Hence, the correct option is b. 
 
        
             
        
        
        
You could put salt-crystals outside during different times of the day when the temperature drops or rises. 
        
             
        
        
        
Beyond size, the main structural differences between plant and animal cells<span> lie in a few additional structures found in </span>plant cells. These structures include: chloroplasts, the cell<span> wall, and vacuoles.</span>
        
             
        
        
        
PH- extremes denature/ change enzyme shape, so they rate decreases
temp –extreme heat denature/ change enzyme shape, so they rate decreases substrate concentration- as substrate levels decrease, enzyme activity decreases