1A - Natural Hazards

Question 1

1A1.1 - What is a natural hazard?

Answer 1

An event which has a huge social impact

Question 2

1A1.1 - What are the four types of natural hazards?

Answer 2

• Tectonic: Involving movement of tectonic plates
• Atmospheric: Weather related
• Geomorphilogical: Occuring on the earth’s surface
• Biological: Involving living organisms

Question 3

1A1.1 - What factors affect risk of natural hazards?

Answer 3

• Urbanisation: Concrete and paving means increased surface run-off and so higher risk of flooding. Tall buildings fall easier in earthquakes
• Climate Change: Warmer weather means means the atmosphere has more energy/more intense storms
• Poverty: Shortage of safe housing means so safe places after houses get destroyed
• Farming: Farmers want to live on floodplains which would increase chance on flooding (duh)

Question 4

1A2.1 - Where are earthquakes distributed?

Answer 4

Mainly around tectonic plate boundaries

Question 5

1A2.1 - What are the two types of plates?

Answer 5

• Dense, thin, oceanic crust

- Less dense, thick, oceanic crust