Hazards iGCSE revision

What is the primary characteristic used to measure the size of natural hazards such as earthquakes and tropical cyclones?

• Frequency

• Magnitude

• Recurrence interval

• Severity

What is the calm center of a tropical cyclone called?

• Eye

• Core

• Vortex

• Cyclonic zone

Which plate boundary is typically associated with shallow-focus earthquakes?

• Subduction Zones

• Constructive Plate Margins

• Collision Boundaries

• Conservative Plate Boundaries

Which scale measures the magnitude of earthquakes logarithmically?

• Richter Scale

• Moment Magnitude Scale

• Seismic Intensity Scale

• Mercalli Scale

What are some primary volcanic hazards that pose risks to nearby populations?

• Earthquakes

• Tsunamis

• Landslides

• Volcanic eruptions

Earthquakes occur at tectonic plate boundaries due to built-up pressure release, with human activities also capable of triggering quakes. ___

Primary earthquake hazards include ground shaking and ___

Where do volcanoes occur?

• At constructive plate margins

• At destructive plate margins

• At hot spots

• All of the above

What temperature is typically required for the formation of tropical cyclones?

• Above 20°C

• Above 25°C

• Above 27°C

• Above 30°C

What force initiates the rotation of tropical cyclones away from the Equator?

• Gravitational Force

• Centrifugal Force

• Coriolis Force

• Magnetic Force