Question

HELP! MEDAL & FAN! (Im sorry but if it is not correct no fan or medal. Ive been asking people. Wrong answer every time)
In addition to paleomagnetism, what other evidence was needed to determine the rate of seafloor spreading?
A the strength of the magnetic field
B the age of each strip of rock
C minerals in the rocks
D the thickness of the rock layers
What causes the earth’s magnetic field?
A currents in the earth’s liquid-metal outer core
B magnetic particles located at the earth’s poles
C molten material in the mantle
D the mineral composition of the earth’s crust

Answer 1

I've already told you the answer for #1. It's A. #2 is Currents in the earth s liquid-metal outer core causes the earth's magnetic field.B.

Answer 2

That was not correct

Answer 3

1.) a 2.) c

Answer 4

Thanks!