Erupted Materials
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Basaltic magmas have low viscosity because they contain ________ silica than other types of magmas.
less
Basaltic magmas have low viscosity because they contain less silica than other types of magmas. True or False
True
There often are chunks of solid rock ripped away from the conduit of the volcano as it erupts. These chunks of rock form ________ ________.
Volcanic blocks
________ is a measure of the resistance of a fluid to flow.
viscosity
Often, lava is ejected into the air as ________.
pyroclasts
The sulfur dioxide released during volcanic eruption can combine with oxygen and water in the atmosphere to form tiny droplets of ________ ________.
Sulfuric acid
Blocks fall back to ground on a volcano’s sides. Ash can be picked up by wind and blown hundreds or even thousands of kilometers away. True or False
True