Final answer:
The false statement about mid-ocean ridges is that the Hawaiian Islands are an example of an uplifted mid-ocean ridge. They are actually formed by a volcanic hotspot, not by divergent tectonic plate boundaries like mid-ocean ridges.
Step-by-step explanation:
Among the statements about mid-ocean ridges, the false statement is: The Hawaiian Islands are an example of an uplifted mid-ocean ridge. This is incorrect because the Hawaiian Islands are actually formed by a volcanic hotspot, which is a location where material from deep within the Earth’s mantle rises to create a volcano. Mid-ocean ridges, such as the mid-Atlantic ridge, are places where tectonic plates are diverging, and new crust is formed by upwelling magma. "Black smokers" or hydrothermal vents are indeed often found around these mid-ocean ridges.
Continental rifts, like the East African Rift, can potentially evolve into mid-ocean ridges if continued divergence of the continental plates occurs and oceanic crust begins to form. The statement that Iceland represents a part of the mid-Atlantic ridge that has risen above the sea surface is true as Iceland is situated on the divergent boundary between the North American and Eurasian plates.