High Five Facts - Avalanches

This video provides an in-depth look at the main concepts of the subject matter, along with practical examples and a summary.

What factors can trigger an avalanche?

• Heavy rainfall and earthquakes

• Volcanic eruptions and landslides

• Heavy snowfall, temperature changes, and human activities

• Tsunamis and hurricanes

Which type of avalanche is considered the most dangerous?

• Rock avalanches

• Ice avalanches

• Slab avalanches

• Loose snow avalanches

What is a characteristic feature of loose snow avalanches?

• They occur only on slopes steeper than 45 degrees

• They are triggered by volcanic activity

• They involve a large cohesive layer of snow

• They start at a single point and create a fan-shaped path

On what slope angles are avalanches most likely to occur?

• 45 to 60 degrees

• 10 to 20 degrees

• 20 to 30 degrees

• 30 to 45 degrees

What sound is often associated with an approaching avalanche?

• The crackle of a fire

• The rumble of a freight train or thunder

• The sound of a waterfall

• The whistle of the wind