Pyroclastic materials include which of the following?
Active volcanoes are known to exist on
How does andesitic magma differ from basaltic magma?
Response: Andesitic magma is associated with relatively explosive eruptions, but basaltic magma is associated with relatively nonexplosive eruptions.
How is magma different from lava?
Response: Magma exists below Earth’s surface.
As its silica content increases, magma tends to
Response: have greater viscosity
Crater Lake is an example of which volcanic landform?
Response: a caldera
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