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  • New sea-floor is created continuously at mid-ocean ridges. As magma slowly seeps through these ridges, new sea floor is created each and every day.
  • An intriguing theory about the Earth’s poles is they reverse polarity periodically. When the polarity of the earth changes, it is marked in how new rocks form.
  • Sea floor spreading is process of plate tectonics. New oceanic crust is created as large slabs of the Earths crust split apart from each other and magma wells fill up to fill the gap.
  • Continental drift? Continental drift is the gradual movement of the continents across the earths surface through geological time.
  • Do you know who came up with the thery of continental drift
  • His name is Alfred Wegener
  • No who???
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