Answer:
B
Explanation:
Because the roots of the tree were what where controling the erosion 
Hope this helps :))
 
        
                    
             
        
        
        
<span>The answer is A.
Invasive species are species that thrive unregulated
in an introduced environment/ habitat and
affect the biodiversity of the environment.
They boom unchecked mostly due to lack of a natural predator. Therefore, introducing
a predator will limit their growth. </span>
 
        
                    
             
        
        
        
<span>The Correct answer is not shown. The correct answer would have to say Atom A has one proton than Atom B because in the question it says Atom A has an atomic number of 19 and Atom B has an atomic number of 20.</span>
        
             
        
        
        
Magma is basically molten rock but INSIDE the earth, Lava is Molten rock that is no longer under the crust, and is on the surface (like lava from a volcano