Question

1. what kind of rock makes up each type of earths crust?

oceanic crust-
continental crust-

Explanation:

Oceanic crust is formed at mid-ocean ridges and is dominated by dense, iron- and magnesium-rich igneous rock. Continental crust is thicker, less dense, and composed of a variety of rocks, with felsic igneous and metamorphic rocks being the primary components, often grouped under the term granite-like or granitic rocks.

Answer:

Oceanic crust- Basalt (and gabbro, the intrusive form)
Continental crust- Granitic rocks (such as granite and rhyolite, along with metamorphic and sedimentary rocks)