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Q11: Seafloor spreading is continuing at a rate
Q15: Earthquakes occur at all of the following
Q36: The only zone of the ocean with
Q47: Water is the only substance that occurs
Q54: Repeated sound speed measurements over great distances
Q55: When using sound to determine changes in
Q66: An estuary with a short-flushing time will
Q75: Seawater taken from an area with a
Q77: When salt-forming ions are placed in water,
Q81: Hess's 1960s theory of mantle convection and