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Alvin, Sonar , and underwater vessels
ocean technologies are used from like scientist objects to go into the ocean
minisubmarines
the darkness and the weather condition
A bicycle is not a technology that helps us know what the ocean floor is like. Sonar, bathymetry, and remote-operated vehicles are technologies commonly used for mapping the ocean floor.
Ocean-floor spreading.
Pictures, or scattered debris on the floor of the ocean appeared.
Through geomagnetic reversal whee they studying the magnetic properties of the seafloor.
Pictures, or scattered debris on the floor of the ocean appeared.
Scientists found evidence of magnetic stripes on the ocean floor, which indicated periodic reversals in Earth's magnetic field. This discovery helped support the theory of plate tectonics and seafloor spreading.
Deep-sea organisms have been difficult to study because the ocean floor is hard to get to.
They measure how far away the rock is from the mid-ocean ridge. The farther, the older.