Answer:
a
Explanation:
Balance means that herbivores have the chance to live and make more, and the carnivores can eat some of the herbivores, to not have an overpopulation.
Answer: convergent plate boundary
Explanation: when a plate capped by oceanic crust is subducted under a continental lithosphere an accretionary wedge and fore-arc basin forms an active continental margin between the trench and the continent .the magma that is created by ocean-continent convergence forms a magmatic arc the surface expression of a magmatic arc is either a line of andesitic island such as Aleutian island .
