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If you are talking about underwater volcanoes, than i have a answer. So, when underwater volcanoes erupt it MIGHT be able to create a island like Hawaii. Hawaii was made because of an eruption underwater.
to make a diagram
well you have to make the cone shape then paste it with think glue or paper mache then put it in the oven on low
Cinder cone volcanoes are primarily composed of a rock called scoria. This rock filled with bubbles like pumice and is generally of a basaltic composition.
AnswerVolcanoes can be active or inactive. When a volcano is active there is magma or lava moving around getting ready to make an explosion. When a volcano is inactive there is either rocks and bits of other stuff melting in the main vent making magma getting ready to become active or they are not doing anything, just sitting there like a mountain.The four main types of volcanoes are shield volcanoes, composite volcanoes, also called stratovolcanoes, cinder cones, and lava domes. Composite volcanoes are the most abundant, and an example is Mount Fuji in Japan. These volcanoes are formed from layers of ash. In contrast, shield volcanoes are gently sloping volcanic mountains built almost fully of lava flows. They were named on account of their shape , which is reminiscent of an ancient warrior's shield. These volcanoes are typically much larger then composite volcanoes. Lava domes and Cinder cones are much smaller than shield or composite volcanoes.AnswerThey are, cinder cone, composite cone, shield cone, and extinct volcano.
Volcanoes form like a mountain, but usually start building underground to get close to the core for the magnum. So, if there is a Natural Disaster, two plates of ground, gravel, and rock collide into each other until it makes a volcano.
There tends to be five main parts that make up a volcano. They include the magma chamber, the main vent, lava, the crater, and the pyroclastic flow , which is fast moving flow of hot gas and rock.
Because it all depends on what type of volcano it is, if it is a shield volcano low and flat it's eruptions will be gentle. But if it is a cone volcano tall and steep it's eruptions will be very violent.
The typical cone shape of a volcano happens when sticky lava erupts upward. Sticky lava creates a dome shape and the lava cools slowly.