Effects of Volcanic Eruptions, Chapter 8 Section 3
A large volcanic explosion can affect what?
The global climate
Why is pumice added to soil?
To allow air and water to circulate more easily thru the soil.
Geothermal energy is used to?
To keep roads free of ice
What are 2 global impacts of a temperature change caused by a volcanic eruption?
Crop failure and starvation
The liquid in volcanic rocks that is heated by magma is called?
Geothermal Water
What type of eruption is the most destruction type of eruption?
A blast from an explosive one.
What is lahar?
A mudflow that forms when volcanic ash and debris is mixed with water during a volcanic eruption.
How can large volcanic eruptions cause global temperatures to decrease?
As the ash and gasses are spread around the planet they may absorb and scatter enough sunlight to cause the average global temperature of Earth to decrease.
How does a volcanic eruption affect climate change?
Ash blocks sunlight, causing temperatures to drop.
What volcanic rocks are commonly used in the construction of roads and bridges?
Basalt and Ash
What is a specific health problem that volcanic ash can cause?
Respiratory problems.
Where are the worlds greatest consumers of geothermal energy located?
Reykjavik, Iceland.
Why is volcanic soil a benefit of volcanic eruptions?
Rick Volcanic soil - it helps crops, forest and animal grazing.
One benefit that volcanoes provide is?
Warmer temperatures.
