Exercise
Form 8: Earth's Layers and Lithospheric Plates
Study the internal layers of Earth and the structure of lithospheric plates. Learn how the lithosphere forms the rigid outer shell of our planet.
Questions
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MultiChoice
Which rigid outer layer of Earth is broken into tectonic plates?
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MultiChoice
What two parts combine to form Earth's lithosphere?
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MultiChoice
Which softer, semi-fluid mantle layer lies directly beneath the lithosphere?
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MultiChoice
What property of the asthenosphere allows tectonic plates to float and slide on top of it?
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MultiChoice
What circular heat-transfer mechanism moves material in the asthenosphere?
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MultiChoice
What causes convection currents to form in Earth's mantle?
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MultiChoice
Which of Earth's main compositional layers is the thinnest?
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MultiChoice
Which type of Earth crust is thicker?
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MultiChoice
Which type of Earth crust is denser?
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MultiChoice
What rock type primarily composes oceanic crust?
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MultiChoice
What rock type primarily composes continental crust?
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MultiChoice
How many major tectonic plates cover Earth's surface?