15 Questions
What is a volcanic hazard?
A volcanic process that causes damage to life or property
What can cause the slopes of a volcano to become unstable?
Magma getting injected into the volcanic rock
What is a landslide?
A mass movement of rock fragments, soil and debris downslope
What is the most remarkable feature of a volcano?
The red-hot lava rushing down the slope
What can a volcanic eruption trigger besides lava flow?
Earthquakes and tsunamis
What is the purpose of the lesson described in the text?
To learn about volcanic hazards and how to prevent them
What is the main difference between lava and other volcanic hazards?
Lava is the most visually striking feature of a volcanic eruption
What causes a volcanic earthquake?
Pressure and stress from volcanic activity
How do lahars differ from landslides?
Lahars carry volcanic debris and water, while landslides do not.
What is the potential danger of a lahar mixing with water?
It increases the speed of the lahar flow.
How do communities attempt to protect themselves from lahars?
By constructing barriers to prevent the flow of lahars
What is one potential impact of a lahar damming waterways?
Risk of flooding upstream
Why are lahars described as resembling 'a river of wet cement'?
To compare their dense and destructive nature
What makes lahars impossible to outrun, according to the text?
Their high speeds, traveling tens of meters per second
How does a lahar differ from a volcanic earthquake?
A lahar involves the flow of volcanic debris and water, while a volcanic earthquake does not.
Explore how volcanoes can cause damage both locally and globally, including the eruption of small particles into the stratosphere and potential destruction of coastal areas thousands of miles away. Learn about preventive measures to mitigate volcanic hazards.
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