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What is an Ocean Basin?

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Questions and Answers

What is the primary factor responsible for the formation of ocean basins?

Volcanic eruptions

Weathering and erosion

Plate tectonic activity (correct)

River drainage

What is the term used to describe the entire shape of an ocean floor?

Oceanography

Geography

Bathymetry (correct)

Topography

What feature forms the rim of an ocean basin?

Continental slope

Abyssal plain

Continental shelf (correct)

Mid-ocean ridge

How many ocean basins are recognized by most oceanographers?

5 Signup and view all the answers

What percentage of the planet is covered by the world ocean?

70% Signup and view all the answers

What is the primary way that ocean basins are formed?

Seafloor spreading or subduction Signup and view all the answers

What occurs when tectonic plates crash into each other?

Subduction Signup and view all the answers

What is the characteristic of an active continental margin?

Presence of a convergent plate boundary Signup and view all the answers

What is the function of fractured vaults in the Mid-Atlantic Ridge?

To relieve tension along the ocean ridge Signup and view all the answers

What is the characteristic of an inactive continental margin?

Presence of abyssal plains Signup and view all the answers

What type of rock is brought to the seafloor's surface by volcanic eruptions as a result of plate movement?

Basalt Signup and view all the answers

What is the characteristic of the slope of the Mid-Atlantic Ridge?

Steep and rugged Signup and view all the answers

What is a characteristic of abyssal hills?

Their height decreases as you move away from the oceanic ridge Signup and view all the answers

What is a characteristic of guyots?

They have a flattened top due to erosion Signup and view all the answers

What is a characteristic of ocean trenches?

They are steep and V-shaped Signup and view all the answers