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Why are some volcanoes more destructive then others?
Well, all volcanoes create land, but explosive volcanoes also destroy land. Explosive volcanoes are explosive because they have a lot of gas and pressure inside them, and then the pressure suddenly drops. That's when the volcano starts erupting.
How would volcanoes affect the climate?
Depending on the emissions, volcanoes can either cause warming or cooling. Effusive eruptions of basaltic lava tend to produce carbon dioxide, which warms the climate. Explosive eruptions of rhyolitic or dacitic ash and pumice tend to produce sulfur dioxide, which causes cooling. In both cases the eruption needs to be exceptionally large to have a noticeable effect on climate.
What are Volcanoes that are not active but not dead either?
dormant volcanoes
What type of material do explosive volcanoes produce?
An explosive eruption is caused by magma with a high content of water and silica. Non-explosive eruptions are caused by either lava because it is a thicker consistency, or magma with a low content of water and silica.
What is an nonexplosive volcano?
Lava flow.
What are the Requirements for a good explosive?
A good explosive should have an explosive base that is either solid or liquid. It should also have a long ignition line.
How do tectonic plates interact with each other?
They form mountains, volcanoes, and cause earth quakes.Tectonic plates move in many different ways. They either slide one on top of the other which causes volcanoes or scrape past each other creating earthquakes.
Why don't shield volcano have pyroclastic flows?
Shield volcanoes can produce pyrcoclastic flows, but it is rare. Shield volcanoes are fed by low-viscosity basaltic lava with a low gas content. The means that most eruptions are either non exposive or have a very low-grade explosivity. An eruption needs to be explosive to produce pyroclastic flows. However, records show that Kilauea has produced explosive eruptions with pyroclastic flows. The explosions appear to have been the result of groundwater seeping into the magma chamber.
Why do they have volcanoes?
Volcanoes form from either techtonic plates crashing together or from hot spots under the earth
What do you think the cirles on the left of mars are?
Either craters or volcanoes.
What is the difference between a cinder cone and a stratovolcano?
A cinder cone is a relatively small volcano that erupts mostly chunks of a variety of basaltic lava called scoria. Eruptions are somewhat explosive, but not very.Stratovolcanoes form tall mountains and can erupt a variety of materials ranging in composition from basalt to rhyolite. These volcanoes can erupt either clouds of ash and pumice, or lava flows. They can produce highly explosive eruptions.
How many volcanoes are there in South America?
There are several hundred volcanoes that are in South America. Of those volcanoes, there are between 200 and 300 that are active.
