What element makes up most of Earth's core?
A) iron
B) oxygen
C) magnesium
D) silicon
Correct Answer:
Verified
Q34: What causes the sharp increases in the
Q35: Where is Earth's magnetic field generated?
A)in the
Q36: Over geologic time,most of the heat lost
Q37: The mechanical transfer of heat by vibration
Q38: Which of the following statements about Earth's
Q40: Seismic tomography has revealed that seismic waves
Q41: How much of Earth's magnetic field can
Q42: The graphical curve that describes how temperature
Q43: The area on the surface of Earth
Q44: A P wave that travels from the
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