Stratovolcano or composite cone-
15-16. What are the two most non-explosive eruption types?
Icelandic and Hawaiian eruptions are the least explosive and dangerous of the eruption types.
17-18. What are the two most explosiveeruption types?
Plinian is the most explosive and Pelean is the deadliest.
19. What is a hot spot? Use the term mantle plume in your definition.
A hot spot occurs near the crust where very hot solid rock rises through the mantle (a mantle plume) and forms magma near the surface of the Earth. Hot spots form volcanoes in both oceanic plates and continental plates.
20. What is a caldera?
A caldera is a bowl-shaped depression caused by a volcanic eruption in which the top of the volcano collapses.
21. How does a caldera form?
A caldera will form when a volcanic eruption depletes the magma chamber causing a void under the volcano's summit. The weight of the top of the volcano causes it to collapse. A bowl-like depression or hole forms there.