Final answer:
Volcanoes are geological features that result from the eruption of magma from deep within the Earth's crust. Some famous examples include Mount Pinatubo, Mount Etna, and Mount Kilimanjaro.
Step-by-step explanation:
Volcanoes are geological features that result from the eruption of molten rock (magma) from deep within the Earth's crust.
They are formed when the magma rises to the surface through cracks in the Earth's crust and releases gases, ash, and lava.
Some famous examples of volcanoes include Mount Pinatubo, Mount Etna, Mount Kilimanjaro, Mount Merapi, Mount Rainier, Mount St. Helens, Mount Bromo, Mount Fuji, Mount Tambora, Mount Pelée, Mount Vesuvius, Mount Ruapehu, Mount Vinson, Mount Blackburn, Mount Logan, Mount Everest, Mount Cook, Mount Ararat, Mount St. Elias, Mount Hayes, Mount Fairweather, Mount Boising, Mount Kenya, Mount Whitney, and Mount Elbrus.