Question

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Explanation:

Mid - ocean ridges are mountainous underwater features. Their discovery after World War II provided evidence for plate tectonics. Plate tectonics theory involves the movement of tectonic plates. Mid - ocean ridges are areas where new oceanic crust is formed as plates move apart. Ocean floor sediment, volcanic islands, and underwater cliffs do not have the same direct connection to supporting the plate tectonics theory as mid - ocean ridges in terms of the large - scale geological processes (like seafloor spreading which is part of plate tectonics) that mid - ocean ridges are associated with.

Answer:

mid - ocean ridges