How's it going y'all ???

ive been ite ig…...

The earth's internal process which drives seafloor spreading is

Which revelation resulted from the observation of the spectrum of different galaxies? a. there were more galaxies whose spectrum was blueshifted b. there were no galaxies whose spectrum was redshifted c. there were more galaxies whose spectrum was redshifted d. there were no galaxies whose spectrum was blueshifted

Which layer surrounds the center of the earth? a: crust b: core c: mantle