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Physical science > 25.3 and 25.4 > Flashcards

25.3 and 25.4 Flashcards

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Biology 101 flashcards
1
Q

What is the boundary that mark a density change between layers?

A

Discontinuity

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2
Q

Discontinuity can be identified?

A

Seismic waves

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3
Q

What is a Shadow Zone?

A

Where no seismic waves been recorded

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4
Q

What is another name for Shadow Zone?

A

Dead Zone

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5
Q

What are the degrees from an epicenter that shadow zones fall?

A

105 and 140

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6
Q

Is the outer core a solid or liquid?

A

liquid

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7
Q

Is the inner core a solid or liquid?

A

Solid due to the pressure

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8
Q

What is the lithosphere?

A

The crust and the upper most mantle

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9
Q

What is the asthenosphere?

A

A plastic like layer that the plates move on

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10
Q

What metallic materials make up the core?

A

Iron and Nickel

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11
Q

What elements make up the mantle?

A

Calcium, Aluminum, iron, and Magnesium

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12
Q

A fluids resistance to flowing.

A

Viscosity

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13
Q

Chemical compound, silica dioxide, a common ingredient in most magma and much of earths crust.

A

Silica

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14
Q

Small steep-sloped volcano with a short eruption cycle, composed of cinder, formed at vent in earths crust often around the central vent of a larger volcano.

A

Cinder Cone Volcano

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15
Q

Large, broad, flat volcano composed of layer upon layer of basaltic lava flows.

A

Shield volcano

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16
Q

Large and steep-sided volcano composed of layered of lava and ash.

A

Composite volcano

17
Q

What is molten or liquid rocks stored inside Earth called?

A

Magma

18
Q

Where is the ring of fire located?

A

In the Pacific ocean

19
Q

What forms when tectonic plates collide along subduction zone?

A

volcano

20
Q

Which two specific locations can volcanic activity occur do to divergence?

A

Mid-Atlantic Ridge and East African Rift Valley

21
Q

Are hot spots stationary?

A

No they are in a set location

21
Q

Are hot spots stationary?

A

yes, they are in a set location

22
Q

What are created from hot spots?

A

Volcanic islands (Hawaii)

23
Q

If a liquid has a higher viscosity is it going to run faster or slower?

A

Slower

24
Q

If a magma has a higher viscosity does it have more or less silica?

A

more silica

25
Q

What is pyroclastic material?

A

The solid material that erupts from a volcano

26
Q

what is the smallest type of pyroclastic material?

A

Ash

27
Q

What are the largest type of pyroclastic material

A

Blocks and Bombs

28
Q

What are the types of gasses that come from a volcano?

A

Water vapor, carbon dioxide, and sulfur dioxide

29
Q

How are volcano classified?

A

By size, shape, and the materials that erupt

30
Q

What are the 3 types of volcanoes?

A

Shield,cinder cone and composite volcanoes

Physical science (14 decks)

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