Skip to content
Back to quiz
6. What is a volcano edifice collapse?
- Collapse of a significant part of the volcano as well as landslide.
- Collapse of a small part of the volcano as well as slope failure.
- Collapse of a significant part of the volcano as well as slope failure.
- Collapse of a significant part of the volcano.
7. How do wildfires occur?
- Ignited by; lightening, rockfall sparks, earthquakes and human activity.
- Ignited by; lightening, rockfall sparks, volcanic eruptions and human activity.
- Ignited by; lightening, volcanic eruptions and human activity.
- Ignited by; lightening, sunlight, rockfall sparks, volcanic eruptions and human activity.
8. What is a tornado?
- Short rotating column of air in contact with ground and cumulonimbus cloud. Consists of moisture from the pressure gradient resulting in evaporation.
- Tall rotating column of air in contact with ground and cumulonimbus cloud. Consists of moisture from the pressure gradient resulting in condensation.
- Short rotating column of air in contact with ground and cumulonimbus cloud. Consists of moisture from the pressure gradient resulting in condensation.
- Tall rotating column of air that is not in contact with the ground but is with a cirrocumulus cloud. The centre is warm and condensed.
9. What is the resistance of slope materials?
- Shear strength, cohesion and cement.
- Shear strength, cohesion and friction.
- Shear strength, cohesion, cement and friction.
- Shear strength, cohesion, adhesion, cement and friction.
10. When temperatures are cool what processes are more effective?
- Radiation, conduction, convection and transpiration.
- Radiation, conduction, convection, transpiration and perspiration.
- Radiation, conduction, convection and perspiration.
- Radiation, conduction and perspiration.
11. What are avalanche factors?
- Temperature, slope gradient, aspect, wind direction, terrain, vegetation and snow pack conditions.
- Temperature, slope gradient, aspect, terrain, vegetation and snow pack conditions.
- Temperature, slope gradient, wind direction, terrain, vegetation and snow pack conditions.
- Temperature, slope gradient, rainfall, wind direction, terrain, vegetation and snow pack conditions.
12. What is the difference between earthflow and debris flow?
- Earthflow consists of fine sediment but debris flow is a mix of particles.
- Earthflow consists of large sediment but debris flow is a mix of particles.
- Earthflow consists of fine sediment but debris flow is one typeof particles.
- Earthflow consists of coarse sediment but debris flow is a mix of particles.
13. What are type/s of megahazards?
- Super-eruptions and extra-terrestrial hazards.
- Extra-terrestrial hazards.
- Super-eruptions, regional eruptions and extra-terrestrial hazards and
- Super-eruptions.
14. What are rip currents?
- Seaward flows that extend beyond the surf zone, driven by constructive waves.
- Seaward flows that extend beyond the surf zone, driven by destructive waves.
- Seaward flows that extend beyond the surf zone, driven by breaking waves.
- Seaward flows that don't extend beyond the surf zone, driven by breaking waves.
15. What is the driving force of slope stability?
- Shear stress, gravity, weight and slope angle and area.
- Shear stress, weight and slope angle.
- Shear stress, gravity, weight and slope angle.
- Shear stress, gravity and slope angle.
16. How often to wildfires occur?
- 3-4 million km2 burn annually worldwide, 4% of global vegetated land surface.
- 3-4 million km2 burn annually worldwide, 3% of global vegetated land surface.
- 3-6 million km2 burn annually worldwide, 3% of global vegetated land surface.
- 2-4 million km2 burn annually worldwide, 5% of global vegetated land surface.
17. What are other factors in heat stress apart from temperature?
- Humidity, humans adjust to temperatures greater than their body temperature through transpiration.
- Humidity, humans adjust to temperatures greater than their body temperature through perspiration.
- Humidity, humans adjust to temperatures less than their body temperature through perspiration.
- Humidity, humans adjust to temperatures greater than their body temperature through evapouration.
18. What are some ENSO impacts (further afield)?
- Disease.
- All of them.
- Cyclone frequency (Atlantic).
- Floods in US
19. What is a recurrence interval?
- Recurrence events through time - numerical scale from hours to million of years.
- Recurrence events through time - logarithmic scale from hours to million of years.
- Recurrence events through time - logarithmic scale from hours to hundreds of years.
- Recurrence events through time - logarithmic scale from hours to thousands of years.
20. What is a megahazard?
- Unexpected or unprecedented in; type, size, area and place.
- Unexpected or unprecedented in; type, size and place.
- Unexpected or unprecedented in; size and place.
- Unexpected or unprecedented in; type and size.