Air and water were too strong
Northeastern United States is the region next to the Great Lakes (for example: lake Ontario) - and in fact they form the border between the Northeastern United States and Canada. (Perhaps" Great Lake region" fits better the gap - the gap needs a phrase in singular form).
Answer:
i thing mass washing it seems to be
Answer:
A, B and D
Explanation:
The continental crust contains igneous, sedimentary and metamorphic rocks. Along convergent plate boundaries, the continental crust gets renewed with igneous rock providing more rock to be made into sedimentary rock. The sedimentary rock can then continue to sink into the crust becoming metamorphic. Due to this variety of types of rock, the minerals can be diverse, including sodium, potassium, aluminium and calcium. Continental crust is also much thicker, up to 70km.