Question

What does the presence of new rock near an oceanic ridge indicate?

There is always a deep-sea trench underneath.
There is evidence of seafloor spreading.
They are made from oceanic crust.
They have iron oriented in different directions.

Answer 1

Answer:

d

Explanation:

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Answer 2

The presence of new rock near an oceanic ridge indicate that they have iron oriented in different directions.

• When old oceanic crust is subducted and melted into magma, new oceanic crust in the form of igneous rock is created at mid-ocean ridges and volcanic hotspots.

Areas where new crust is being created at mid-ocean ridges are much younger than zones further away.

Ocean-floor spreading occurs when volcanic and earthquake activity happens at the mid-ocean ridges.

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