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Science > Chapter 9 > Flashcards

Chapter 9 Flashcards

(8 cards)

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1
Q

What is the body of molten rock that feeds a volcano?

A

Magma Chamber

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2
Q

What is an opening at the surface of the Earth through which volcanic material passes?

A

Vent

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3
Q

What is a funnel-shaped pit near the top of the central vent of a volcano?

A

Crater

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4
Q

What is a large, semicircular depression that forms when the magma chamber below a volcano partially empties and causes the ground above to sink?

A

Caldera

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5
Q

What is a wide, flat landform that results from repeated non explosive eruptions of lava that spread over a large area?

A

Lava Plateau

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6
Q

What is an area of deep cracks that forms between two tectonic plates that are pulling away from each other?

A

Rift Zone

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7
Q

What is a volcanically active area of Earth’s surface far from a tectonic plate boundary?

A

Hot Spot

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8
Q

What is a vent or fissure in the Earth’s surface through which magma and gases are expelled?

A

Volcano

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