Complete the Words

A volcano is an opening in the Earth's crust through which molten rock, ash, and gases escape. this rock, as magma, the surface, it is called lava. volcanoes are where plates diverging or , creating points weakness. While their eruptions can be incredibly destructive, they also create new landforms and highly fertile soil. The study of these geological formations, called volcanology, helps scientists understand and predict their powerful activity.