How Volcanic Eruptions Shape Earth

Volcanoes are geological formations found on continents and ocean floors, formed by molten material erupting from Earth's interior. They typically form over hotspots or at tectonic plate boundaries. Eruptions occur when pressure forces magma to the surface, becoming lava that cools into igneous rock. Volcanoes vary in shape and size, with composite and shield volcanoes being notable types. The Ring of Fire is a major volcanic region. Eruptions can create craters and calderas, and geothermal features like geysers. While destructive, volcanoes also reshape landscapes positively.

Describe the formation of craters and calderas.

How can volcanic eruptions impact the surrounding environment?