How does the discovery of seafloor spreading help to explain the mechanism behind why plates move? Explain your answer.

Answer 1

http://vulcan.wr.usgs.gov/Glossary/PlateTectonics/description_plate_tectonics.html

http://www.pmel.noaa.gov/vents/nemo/explorer/concepts/spreading.html

Answer 2

Thanks!

Answer 3

wuz up

Answer 4

wowerz!