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Geography > Natural Hazards > Flashcards

Natural Hazards Flashcards

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1
Q

When did the Nepal Earthquake happen?

A

April 2015.

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2
Q

When did the Chile Earthquake happen?

A

December 2010.

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3
Q

What was the Nepal’s Earthquake Magnitude?

A

7.8.

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4
Q

What was the Chile’s Earthquake Magnitude?

A

8.8.

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5
Q

What are the Earth’s 4 layers?

A

Inner core, Outer core, Mantle, Crust.

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6
Q

What are the Earths major pieces called?

A

Tectonic plates.

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7
Q

2 Types of Crust?

A

Oceanic Plate,
Continental Plate.

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8
Q

Why do tectonic plates move?

A

Convection Currents.

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9
Q

4 Ways of reducing the impact of Tectonic hazards.

A

Monitoring,
Prediction,
Protection,
Planning.

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10
Q

What are 4 things that affect hazard risk?

A

Population growth.
Global Climate Change.
Deforestation.
Wealth.

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11
Q

How many homes were destroyed in the Nepal Earthquake?

A

500,000.

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12
Q

How many homes were destroyed in the Chile Earthquake?

A

220,000.

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13
Q

How much of Nepal’s GDP income was from Tourism?

A

8.9%

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14
Q

How much road was destroyed by landslides after the Chile Earthquake?

A

140 km.

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15
Q

Three ways humans contribute to Climate change.

A

Agriculture.
Fossil Fuels.
Deforestation.

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16
Q

Three ways climate change is natural.

A

Orbital changes.
Solar Output.
Volcanic Activity.

17
Q

What is a natural hazard?

A

A naturally occurring event that is a threat to a population.

18
Q

What is the difference between a natural hazard and a natural event?

A

Natural hazards are a threat to people, whereas a natural event is not.

19
Q

What are the 3 natural hazard groups?

A

Geological hazards
Hydrological hazards
Atmospheric hazards

20
Q

Define geological hazards.

A

Hazards caused by processes on land.

21
Q

Give 4 Geological hazard examples.

A

Volcanoes
Earthquakes
Mudflows
Landslides

22
Q

Define Hydrological hazards.

A

Hazards caused by the movement of water on the land.

23
Q

Give 1 Hydrological hazard example.

A

Flooding

24
Q

Define Atmospheric hazards.

A

Hazards caused by the weather.

25
Q

Give 3 examples of Atmospheric hazards.

A

Tropical storms
Tornadoes
Droughts

26
Q

Define hazard risk.

A

The probability that a natural hazard will actually affect a population.

27
Q

What are the five factors affecting hazard risk?

A

Urbanisation
Population growth
Wealth
Climate change
Land use

28
Q
A

Geography (4 decks)

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