Question

The chief cause of a volcano is disturbances in earths crust

Answer 1

Answer:

i dunno the answer of this

Explanation:

Answer 2

Answer:

A build 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. During earthquakes, faults, or giant cracks, are produced by the pressure of the moving rock.