How many countries make up the region of central america? name two of them.

Seven countries make up the region of Central America, two of them are Belize and Costa Rica.

Why you put last one a? i think is b.

1. d: oceanic crust is thicker and contains a lot of granite2.d: where two continental plates are colliding  3.b.contour boundaries4.b.plates that are attracted to each other by gravity5.a.as two continental plates collide along a convergent boundary, mountains are formed.