Author Question: Which process is responsible for Earth's magnetic field? In which layer does this process occur? ... (Read 59 times)

ap345 · **on:** Jul 16, 2018

Which process is responsible for Earth's magnetic field? In which layer does this process occur?

A) Radiation; upper mantle
B) Subduction; lower mantle
C) Convection; outer core
D) Crystallization; inner core

Question 2

Since humans cannot access the core, what objects do scientists use as a proxy to determine the composition of the inner and outer core?

A) Volcanic rocks
B) Meteorites
C) Comets
D) Glaciers