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Plate Tectonics

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Reanna Von

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Cards in this guide (13)
What is the mechanical layer of Earth that has the most active convection currents

The Earth's core.

What mechanical layer lies below the lithosphere

asthenosphere

What happens during subduction

Dense oceanic crust slides under less dense continental crust

A fault generally occurs at a transform boundary

A strike-slip fault generally occurs at a transform boundary

What causes the pressure that allows diamonds to form in the mantle

The weight of the rocks in the crust and upper mantle results in the pressure that allows diamonds to form.

When a seismic wave crosses a boundary it will change directions in the process of

refraction

Which is a method that scientists use to determine the composition of Earth's layers

Comparing the composition of the crust to other bodies in the solar system.

What factor is responsible for keeping the inner core in a solid state

high presure and heat

Oceanic crust slides under continental crust during subduction because oceanic crust is

denser

What is true about compasses

compass magnets can be deflected by earths magnetic field or other permanent magnets

The continental crust is what

The continental crust is up to 70 km thick.

New crust forms

At ocean ridges

Which of the following is true of permanent magnets

magnetic stuff...

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