What type of volcano is Mount St. Helens in the Cascade Mountains? What creates

Question

What type of volcano is Mount St. Helens in the Cascade Mountains? What creates the Cascade Volcanoes? Are these eruptions normally explosive or effusive? What kinds of lava/rocks/materials would it produce? Select all that apply to answer each of these questions.

Less viscous

Felsic

Effusive

Shield volcano

Hotspot

Rhyolite

Obsidian

Plate tectonics /subduction zone

Pumice

Granite

Intermediate

Gabbro

More viscous

Basalt

Explosive

Ash/tuff

Pyroclastic flows

Stratovolcano/Composite volcano

Mafic

Andesite

Cinder cone

A.

Less viscous

B.

Felsic

C.

Effusive

D.

Shield volcano

E.

Hotspot

F.

Rhyolite

G.

Obsidian

H.

Plate tectonics /subduction zone

I.

Pumice

J.

Granite

K.

Intermediate

L.

Gabbro

M.

More viscous

N.

Basalt

O.

Explosive

P.

Ash/tuff

Q.

Pyroclastic flows

R.

Stratovolcano/Composite volcano

S.

Mafic

T.

Andesite

U.

Cinder cone

Explanation / Answer

options that apply-

U. Cinder cone

Stratovolcano/Composite volcano

Plate tectonics /subduction zone

Explosive

Pumice

Ash/tuff

Andesite

Basalt

Pyroclastic flows

R.

Stratovolcano/Composite volcano

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