Question

1 multiple choice 1 point the outermost compositional layer of the earth is the
○ mantle
○ inner core
○ crust
○ outer core
2 multiple choice 1 point the inner core is _______
○ solid
○ liquid
○ gas
○ plasma

Explanation:

Question 1

The Earth's compositional layers (based on chemical composition) are crust, mantle, outer core, inner core. The outermost is the crust. Mantle is below crust, inner core is innermost, outer core is between mantle and inner core.

The inner core of the Earth is solid due to extremely high pressure (even with high temperature) that keeps the iron - nickel alloy in a solid state. Outer core is liquid, and inner core is solid.

Answer:

C. crust

Question 2