Question

What is a volcano?__________________What causes a volcanic eruption?​

Answer 1

Answer:

Deep within the Earth it is so hot that some rocks slowly melt and become a thick flowing substance called magma. ... If magma is thin and runny, gases can escape easily from it. When this type of magma erupts, it flows out of the volcano. A good example is the eruptions at Hawaii's volcanoes.

Answer 2

Answer:

A volcano is an opening on the surface of a planet or moon that allows material warmer than its surroundings to escape from its interior. When this material escapes, it causes an eruption. ... These volcanic areas usually form mountains built from the many layers of rock, ash or other material that collect around them..

Explanation:

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