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There are several reasons. First, there isn't always magma (what lava is called when it is underground). The magma is usually trapped far below the volcano, unless the volcano is erupting or about to erupt. Second, heat alone cannot create an explosion. An explosion requires rapid expansion. Explosive volcanic eruptions occur when gas trapped in the magma is suddenly released as pressure on the magma decreases, or when water flash boils on contact with lava or magma. If there is no gas, and no water, there cannot be an explosive eruption. Third, the kinds of magma most likely to cause explosive eruptions are very viscous, meaning they do not flow very easily. As a result, they tend to get "stuck." Finally, the poper term is "erupt" not "explode" as not all eruptions are explosive. If there is not enough gas the volcano will ooze out lava rather than causing an explosion.
What else can I help you with?
What is the proper noun of Mayon volcano?
The noun 'Mayon Volcano' is a proper noun, the name of a specific volcano. A proper noun is always capitalized. Examples of common nouns for the proper noun 'Mayon Volcano' are: volcano mountain landform feature
Does meningitis make your brain explode?
yes. always.
Will there be a volcano form?
There are always volcanoes forming.
Can the enginner explode by themselves in Halo 3 odst?
Yes, they have been known to when they see an enemy then they fall to the ground and explode, but not always, they generally only explode when hurt or when other explosions go of nearby
She always go to school everyday?
She always(to go) to school
How would you know that a volcano is active?
When It always does eruptions.
Why does nuclear power need to be disposed of carefully?
because it can always explode right there and then
When was I'm Always on a Mountain When I Fall created?
I'm Always on a Mountain When I Fall was created in 1978-06.
Can hydrogen be used everyday?
Hydrogen is always used, so yes, it can be used everyday.
When a volcano erupting is the sun out?
Not always volcanos can happen at anytime
What is the difference between composite volcano and cinder volcano?
A shield volcano is made from lava flows that flow far, making a very wide, not very steep mountain. A cinder cone volcano is the most common type of volcano. It is formed from volcanic fragments and is very steep sided, although not always extremely tall. They usually have just one main vent, and can also sometimes form from a vent of a larger volcano, growing and becoming a whole new volcano. Composite volcanoes resemble very large cinder cone volcanoes at first, but have bigger particles making them up usually and also have multiple vents more often. They also are potentially more explosive.
Is there always a volcano erupting somewhere around the world?
Yes, every day at least one volcano erupts around the world.
