Chapter31 Flashcards

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0
Q

The outer most solid shell of the earth

A

Crust

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1
Q

The science that deals with the earths structure

A

Geology

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2
Q

The largest layer of the earth less dense

A

Mantle

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3
Q

A huge ball of hot metal located in the center of the earth

A

Core

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4
Q

Degree of compactness of a substance

A

Density

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5
Q

She’ll of cool rigid rock

A

Lithosphere

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6
Q

Made of mantle rock

A

Asthenosphere

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7
Q

Strong rigid mantel rock in between the asthenosphere and outer core

A

Lower mantle

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8
Q

Shell if hot liquid metal

A

Outer core

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9
Q

Solid sphere of hot metal mostly iron

A

Inner core

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10
Q

Is when the continents formed together

A

Continental drift

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11
Q

A global system of underwater mountains

A

Mid ocean ridge

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12
Q

Long deep steep troughs through the sea floor

A

Ocean trench

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13
Q

When a lithosphere is being created

A

Sea floor spreading

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14
Q

A warm liquid rock under the earth

A

Magma

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15
Q

Sinking of the lithosphere into the mantle

A

Subduction

16
Q

When two lithosphere plates come together

A

Subduction zone

17
Q

Large pieces of earth that currently move

A

Plate tectonics