Pieces of ice that break off of a glacier and drift out to open sea are:

Answerhighlands and forests;

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.

Ibelieve that the answer is c.

The correct answer for this question is this one:
" (3) adirondack mountains" the  geologic feature that is composed of the
youngest crustal bedrock is the  adirondack mountains. hope this answer your question. have a great day ahead.