If vegatation were to decrease then primary consumers that are herbivores which are usually the prey will start to decrease too, because there food source is becoming limited. It's like a domino effect, if something is unbalanced in the ecosystem then the whole ecosystem could collapse.
One of them i think is biolorgy with 5th and 6th
Possibility of acid rain will increase
Xx is the answer tell me if I'm wrong.
I am pretty sure the answer is B
