Author Question: If the outer core is cooler than the inner core, why is it in a liquid state? A) It has more ... (Read 111 times)

ap345 · **on:** Jul 16, 2018

If the outer core is cooler than the inner core, why is it in a liquid state?

A) It has more radioactivity than in the inner core.
B) It is under less pressure than the inner core.
C) It has greater water content than the inner core.
D) It has higher density materials than the inner core.

Question 2

Which of the following factors contributed toward the early increase in temperature in the Earth's interior?

A) Impact from planetesimals
B) Friction between landmasses
C) Friction between landmasses and radioactive decay
D) Radioactive decay and impact from planetesimals