Question

oceanic crust is made mostly of: 2 points
basalt
granite
diorite
andesite

the three main layers of the earth are (from outermost to innermost): 2 points
crust, lithosphere, mantle
asthenosphere, lithosphere, core
crust, inner core, outer core
crust, mantle, core

Explanation:

• Oceanic crust: Basalt is the main rock type in oceanic crust. Granite is more common in continental crust. Diorite and andesite are not the primary components of oceanic crust.
• Earth's layers: The three main layers from outermost to innermost are crust, mantle, and core. The lithosphere includes the crust and upper mantle. The asthenosphere is part of the mantle. The inner and outer core are both part of the core but not the correct order when listing the three main layers.

Answer:

• Oceanic crust: basalt
• Earth's layers: crust, mantle, core