what does the presence of new rock near an oceanic ridge indicate?\no there is always a deep - sea trench…
what does the presence of new rock near an oceanic ridge indicate?\no there is always a deep - sea trench underneath.\no there is evidence of seafloor spreading.\no they are made from oceanic crust.\no they have iron oriented in different directions.
Answer
Brief Explanations:
Oceanic ridges are sites of seafloor spreading. Magma rises up at these ridges, cools, and forms new ocean - floor rock. This process is evidence of the movement of tectonic plates and the creation of new crust. A deep - sea trench is not always underneath an oceanic ridge. While new rocks near oceanic ridges are made of oceanic crust, this doesn't explain the significance of their presence. The orientation of iron is related to magnetic striping but not the main indication of new rock presence.
Answer:
There is evidence of seafloor spreading.