Geography Flashcards

1
Q

Crust

A

Thinnest Layer, Coldest layer, Solid rock

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2
Q

Mantle

A

Thickest layer, 1000-3700°C, Semi molten

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3
Q

Outer Core

A

2300km thick, up to 5000°C, liquidised iron

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4
Q

Inner Core

A

1250km thick, over 5000°C, Iron and nickel

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5
Q

Plate boundary

A

Where tectonic plates meet.

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6
Q

Ring of Fire

A

The ring of volcanoes in the pacific ocean.

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7
Q

What are the 4 pieces of evidence for the tectonic plate theory?

A

Jigsaw Fit, Convection Currents, Fossil Studies, Geological patterns.

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8
Q

Jigsaw Fit

A

Coastlines on many continents seem to fit together

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9
Q

Convectional Currents

A

Hot rock rises and spreads in two directions slowly moving the earth’s crust.

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10
Q

Fossil Studies

A

On the coasts of Africa and South America, there is a very rare land reptile: the mezasaurous.

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11
Q

Geological Patterns

A

The mountains of North africa and South europe consist of the exact same rocks that together make a pattern in the mountain range.

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12
Q

Continental Plates

A

Thick, old plates made of basalt

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13
Q

Oceanic Plates

A

New, thin plates made of Granite

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14
Q

Convergent (destructive) Plate boundary

A

When two plates (oceanic and continental) move towards each other, the oceanic plate to move under, causing earthquakes and composite volcanos

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15
Q

Divergent (constructive) Plate boundary

A

When two plate move away from each other, causes calm earhtquakes and volcanoes.

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16
Q

Conservative Plate boundaries

A

When two plates move vertically but in other directions, causes very violent erthquakes but no volcanoes.

17
Q

Collision Plate boundaries

A

When two Continental (same density) plates move together. They forcing each other up, causes volcanoes, earthquakes and fold mountains

18
Q

Magnitude

A

The level of the earthquake on the richter scale.

19
Q

Volcano

A

Openings in the lithosphere where magma from inside the earth escapes to the surface.

20
Q

Active volcano

A

Liable to erupt

21
Q

Dormant volcano

A

A volcano that hasn’t erupted for many years

22
Q

Extinct Volcano

A

A volcano that hasn’t erupted in millions of years

23
Q

Pyroclastic Flow

A

Moving currents of gas and rock that reach speeds of 360mph amd temperatures of 1000°C

24
Q

Volcanic ash

A

Ash blown in the air that travels to other places, damaging buildings and starting fires

25
Q

Volcanic Bombs

A

Masses of molten rock formed during eruptions that reach up to 6 metres squared.

26
Q

Lahars

A

Violent flows of pyroclastic materials that reaches up to speeds of 30mph but that destroys everything in its path

27
Q

Caldera

A

A large depression in the volcano formed after a volcanic eruption

28
Q

Magma Chamber

A

The place where all of the magma is stored prior to an eruption.

29
Q

What does PPP stand for in terms of earthquakes?

A

Predict, Protect, Prepare

30
Q

What are the factors that make a country a Superpower?

A

Resources, Size, Population, Military, Economy, Political

31
Q

What is a soft power?

A

Small influences on the world such as language or entertainment.

32
Q

Uni polar

A

Where most of the world’s aspects are influenced by one country or state.

33
Q

Multi polar

A

Where power is distributed between multiple countries

34
Q

What are the BRIC countries?

A

Brazil, Russia, India, China

35
Q

What are the MINT countries?

A

Mexico, Indonesia, Nigeria, Turkey