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Physical Geography > Natural disasters > Flashcards

Natural disasters Flashcards

1
Q

The point where an earthquake occurs

A

Focus

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2
Q

A sudden movement in the earth

A

Earthquake

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3
Q

A crack in rock below the earth’s surface

A

Fault

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4
Q

The point on the surface above an earthquake

A

Epicentre

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5
Q

Molten rock beneath the volcano

A

Magma

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6
Q

The pipe that carries magma up the volcano to the surface

A

Vent

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7
Q

Funnel-shaped hollow at the top of the volcano

A

Crater

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8
Q

Molten rock that flows out of the volcano and hardens at the surface

A

Lava

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9
Q

Tiny pieces of rock and lumps of solidified lava from the volcano

A

Volcanic bombs

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10
Q

Shape of the volcano formed by layers of ash and lava

A

Cone

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11
Q

Smaller cone that may grow where a small vent reaches the surface

A

Subsidiary cone

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12
Q

Where do volcanoes and earthquakes occur?

A

On a plate boundary

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13
Q

What is the outside layer of the earth called?

A

Crust

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14
Q

What the layer beneath the crust?

A

Mantle

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15
Q

What type of boundary is formed when a the plates move together forming a fold mountain?

A

Destructive plate boundary

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16
Q

What does a destructive plate boundary cause?

A

Earthquake

17
Q

What type of boundary is formed when the plates move in opposite directions or the same way?

A

Conservative plate boundary

18
Q

What does a conservative plate boundary cause?

A

An earthquake

19
Q

What type of boundary is formed when a heavy continental plate is pushed down forming an oceanic trench?

A

A destructive subduction zone boundary

20
Q

What does a destructive subduction zone plate boundary cause?

A

An earthquake and a volcano

21
Q

What type of plate boundary is formed when plates move apart due to convection currents?

A

A constructive plate boundary

22
Q

What does a constructive plate boundary cause?

A

Volcano or a volcanic island

23
Q

Where do volcanoes and earthquakes occur?

A

On plate boundaries

24
Q

What is an MEDC?

A

More economically developed country

25
Q

What is an LEDC?

A

Less economically developed country

26
Q

What are the three steps to human response ?

A

Plan, predict, take cation

27
Q

What is infrastructure?

A

Communications around a place. To have running water, buildings and a good economy: radio, TV, broadband

28
Q

What are short term responses after a natural disaster?

A

Doctors, nurses, fireman, rescue teams, the army, rush to the scene

29
Q

What are the long term responses after a natural disaster?

A

Employ scientists to predict when another disaster will strike

Physical Geography (2 decks)

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