Most of the Southern Europe's terrain is moutaineous.
They can do a lot things with water. Because water is very necessary.
I you are trying to find X. For the first triangle you want to do “x-9=5” and you should get x=14. For the second one you want to do “x+5=8” and you should get x= 3.
Renewable: trees, air, water
Nonrenawable: coal, oil, metals
