Question

causes of volcanism​

Answer 1

Answer:

volcanoes are formed by eruption of lava ask when magma rises through cracks or weak spots in the earth' crust a build up pressure in the earth released by thing such as plate movement which forces molten rock to exploded into the air causing a volcanic

Answer 2

Hey Mate here is your answer...

Volcanoes are formed by eruptions of lava and ash when magma rises through cracks or weak spots in the earth's crust.

The building up of pressure in the earth is released, by things such as a plate movement which forces molten rock to exploded into the air causing a volcanic eruption.

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