Answer:
High, Low
Explanation:
Wind blows air on the surface of the earth from a high pressure center to a low pressure center (this is depicted in the image attached). The area between the two "centers" is referred to as pressure gradient. The warm air in the region of the low pressure center then rises up into the atmosphere. The warm air then cools up in the atmosphere and then passed down back to the earth's surface
 
        
             
        
        
        
The chlorophyll breaks down making the green disappear and the orange yellow or red become visible
        
             
        
        
        
The answer to number 12 is mate.
 
        
                    
             
        
        
        
Two types of crust, the <span>thin oceanic crust that underlies the ocean basins, and the</span> continental crust that underlies the continents, which is thicker than the thin oceanic crust.
Hope this helps!
Thanks,
<span />  - xxred24