Los aludes

The video discusses how extreme snowfall in mountainous areas can lead to avalanches. It explains the formation of weak snow layers from different snowflakes and how these layers can give way under increasing snow weight. The video differentiates between wet and dry snow avalanches and describes how they move down hillsides. It also covers the importance of weather control and safety measures in high-risk areas, highlighting the role of scientists in identifying weak layers. Despite precautions, human activities, especially skiing and snowboarding, contribute significantly to avalanche occurrences.

What causes the formation of weak snow layers in mountainous areas?

• Strong winds

• High temperatures

• Heavy rainfall

• Different types of snowflakes forming fragile layers

How does wet snow behave differently from dry snow during an avalanche?

• Dry snow melts quickly

• Wet snow breaks into smaller pieces

• Dry snow descends in large masses

• Wet snow descends in large masses

What happens to an avalanche as it moves downhill?

• It loses speed

• It gathers more snow and increases in size

• It stops moving

• It melts completely

What is one method used to prevent avalanches in high-risk areas?

• Planting trees

• Using snowplows

• Erecting safety barriers

• Building tall buildings

What percentage of avalanches are accidentally triggered by humans?

• 70%

• 90%

• 50%

• 100%