How do volcanic mountains form?

A.

Volcanic mountains form below the surface then rise above the surface during earthquakes.

B.

Lava, ash, and other materials from volcanic eruptions gradually build up over time.

C.

Tectonic forces squeeze rocks together as two continental plates collide.

D.

Running water deposits sediment that builds up to form the mountains over time.

Question

Shane Powell

Geography

25 November, 23:34

How do volcanic mountains form?

A.

Volcanic mountains form below the surface then rise above the surface during earthquakes.

B.

Lava, ash, and other materials from volcanic eruptions gradually build up over time.

C.

Tectonic forces squeeze rocks together as two continental plates collide.

D.

Running water deposits sediment that builds up to form the mountains over time.

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Answers (1)

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Noodle · Answer 1

B.

Lava, ash, and other materials from volcanic eruptions gradually build up over time. This is the correct answer. The volcanic molten material is ejected from fissures or initial cones and as the lava flows out and cools and as the pyroclastic materials solidify and tumble down the slopes, they build up the flanks of the volcanoes.