Natural Hazards

Question 1

What is a natural hazard

Answer 1

A natural hazard is a natural event that threatens people or has the potential to cause damage, destruction or death

Question 2

What is a hazard risk

Answer 2

A hazard risk is the vulnerability of an area to a hazard

Question 3

3 types of natural hazards

Answer 3

Atmospheric
Geological
Water based

Question 4

Factors affecting hazard risk

Answer 4

Magnitude
Location
Time
Wealth
Education
Frequency
Population density
Natural factors

Question 5

What is a plate

Answer 5

A section of the earths crust

Question 6

What is a plate margin

Answer 6

The boundary where two plates meet

Question 7

What are convection currents

Answer 7

Circular currents of heat in the mantle

Question 8

What are the two types of crusts

Answer 8

oceanic crust and continental crust

Question 9

Oceanic crust is…

Answer 9

Newer
Thinner
Denser
Can sink into the mantle
Can be renewed and destroyed

Question 10

Continental crust is…

Answer 10

Older
Thicker
Less dense
Cannot sink into the mantle
Cannot be renewed or destroyed

Question 11

What are the 4 types of plate margins

Answer 11

Constructive
Conservative
Destructive subduction
Destructive collision

Question 12

What are the effects and responses to a tectonic hazard

Answer 12

Primary effect
Secondary effect
Immediate response
Long-term response

Question 13

What is mitigation

Answer 13

The action of reducing the severity, seriousness, or painfulness of something

Question 14

What are circulation cells

Answer 14

Air blowing from high pressure to low pressure

Question 15

What are the names of the circulation cells

Answer 15

Hadley cell
Ferrel cell
Polar cell

Question 16

How warm does the ocean have to be for a tropical storm to form

Answer 16

27°C

Question 17

How are tropical storms formed

Answer 17

1. The air rises rapidly due to intense heat
2. As the air rapidly rises it condenses releasing heat which powers the storm and draws up ore water form the ocean
3. Air rushes from high-pressure areas outside of the storm to low pressure areas in the centre of the storm creating winds
4. The storm starts to rotate due to the coriolis effect and the storm develops an eye at its centre.
5. It starts to move towards land as it gathers strength from evaporating water on the oceans surface but when it hits land it eventually dies out due to the friction with the land.

Question 18

What are 3 long term evidence for climate change

Answer 18

Tree rings
Pollen analysis
Ice cores

Question 19

What are 3 recent evidence for climate change

Answer 19

Global temperature
Sea level change
Ice sheets and glaciers

Question 20

3 human causes of climate change

Answer 20

Use of fossil fuels
Agriculture
Deforestation

Question 21

What are 3 ways we can manage climate change change

Answer 21

Alternative energy production
Carbon capture
Planting trees

Question 22

what hazards can you find at a constructive plate margin

Answer 22

Volcanic eruptions and earthquakes

Question 23

what hazards can you find at a destructive subduction plate margin

Answer 23

Volcanic eruptions, earthquakes and tsunamis

Question 24

what hazards can you find at a destructive collision plate margin

Answer 24

Earthquakes

Question 25

what hazards can you find at a conservative plate margin

Answer 25

Earthquakes