Deforestation is caused which means that they are being cleared faster than they can grow back. this problem can be fixed if less growth would happen around forests, this problem could be fixed if there were to be more trees planted.
Answer:
A.to define the state's boundaries
Explanation:
They wanted to push in North America because they knew that by gaining control over this continent or at least parts of it would mean a lot to the spanish crown and would also be rewared.