Answer:
i had to list all the facts cuz we didnt have a diagram 
Explanation:
The mantle is the mostly-solid bulk of Earth's interior. The mantle lies between Earth's dense, super-heated core and its thin outer layer, the crust. The mantle is about 2,900 kilometers (1,802 miles) thick, and makes up a whopping 84% of Earth's total volume.
 
        
             
        
        
        
Answer:
D is answer
Explanation:
taiga is not an aquatic ecosystem