Types of Volcanoes
Small, steep-sided volcanoes that erupt gas-rich basaltic lavas?
What are "cinder cones"?
Volcanoes can form along these type of plate boundaries where one plate subducts under another.
What are "convergent" plate boundaries?
This is caused by an explosive eruption and is made up of tiny particles of pulverized volcanic rock and glass.
What is "volcanic ash"?
Most volcanoes occur on or along these.
What are "plate boundaries"?
The release of a large amount of volcanic ash can affect Earth's climate by blocking this?
What is "sunlight"?
Large steep-sided volcanoes that result from explosive eruptions of andesitic and rhyolitic lava along convergent plate boundaries.
What are "composite volcanoes"?
Magma from this hot "area" rises through cracks in the crust and forms a volcano?
What is the "mantle"?
The eruption style of a volcano depends on the amount of "this" dissolved in the magma?
What are "gases"?
This is the area of earthquake and volcanic activity that surrounds the Pacific Ocean.
What is the "Ring of Fire"?
What kind of droplets form in the atmosphere and reflect sunlight in space caused by a volcanic eruption?
What is "sulfuric acid"?
Large, gentle sloped volcanoes that result from quiet eruptions of basaltic lavas along divergent plate boundaries and oceanic hot spots.
What are "shield volcanoes"?
Molten rock that erupts onto Earth's surface is called what?
What is "lava"?
What is a fluid's resistance to flow?
What is "viscosity"?
Most volcanes in United States occur along this coast.
What is the "Pacific Coast"?
Volcanic ash and acid droplets in the atmosphere can do what to the Earth's climate?
What is "cool"?
These travel slowly and are rarely deadly; they can last for many months or longer.
What are "lava flows"?
At what type of plate boundaries does magma rise in cracks between the two plates, forming volcanoes?
What is "divergent" plate boundaries?
Viscosity of lava is higher when the magma has a high amount of this content?
What is "silica"?
Volcanoes that are not associated with plate boundaries are called what?
What are "hot spots"?
As magma rises toward Earth's surface, the pressure on it does what?
What is "decreases"?