15 Questions
What would be revealed if all the water from the ocean basins were drained?
A continuous mountain chain
What is the term for the deformation of the earth's crust due to the movement of tectonic plates?
Tectonic activity
What layer of the earth is beneath the crust?
The mantle
What is the outermost shell of the earth?
The lithosphere
What is the approximate depth of the lithosphere below the earth's surface?
60 miles
What is fractured into sections?
The lithosphere
What process leads to the building of oceanic ridges?
Tectonic activity
What is the layer of mantle below the lithosphere called?
Asthenosphere
What happens when the tectonic plates move away from each other?
A gap is created, and magma rises up through it
What is the molten rock material that rises up through gaps between the tectonic plates?
Magma
What is formed as the magma continues to flow and solidify on the ocean floor?
Mid-ocean Ridges
What is the total length of the oceanic ridge system?
50,000 miles
Where can parts of the oceanic ridge system be found?
In every ocean
What is the process that is similar to the formation of an oceanic ridge?
The formation of a scab over a cut on your finger
What is the shape of the oceanic ridge system in the Atlantic Ocean?
It travels down the center of the Atlantic Ocean
Learn about the oceanic ridge system, a vast mountain range that runs through all major oceans. Discover its location and formation process in this quiz.
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