Vol nominateoes impact people all(prenominal) over the world. Destroying homes, killing family or friends, destroying local farms, killing cattle, chickens, goats etc. Volcanos can affect people more than(prenominal) than any of us think they could. Volcanoes erupt everyday they whitethorn not be newsworthy but they still erupt.
When a plate sinks down into the mantle, it becomes really hot, so hot the rock melts. The rock e buttonually makes it way to the erupt of the earth by dint of cracks. When it reaches the surface of the earth, it becomes lava. When layers build, it forms a venthole.
Tectonic plates (plate tectonics) are what created most volcanoes. It is when two these plates float to stomachher on liquid rock. They are in constant motion. Some beats they move towards each other, most of the time they move apart and sink while the other plate rises above.
Volcanoes are holes or vents in the Earths crust, created when melted hot magma under the crust of the Earth is forced up(a) to the surface. Magma collects in a chamber beneath the crust, pressure builds up and forces it up through cracks or fissure and a conduit to the surface is created. Hot gases try to escape but are trap in the magma. The surface of the Earth begins to bulge until the pressure can no longer be contained.
Gases and fragments are released in a violent explosion called a volcanic eruption.
A volcano can erupt many times in its lifetime. The somatic released over many eruptions gradually builds up a strobile shaped mountain. In the center of the mountain is a vent called the central vent, at that place can be smaller case vents that come off of the central vent. In many volcanoes there is a bowl shaped crater at the legislate of the central vent. Under the volcano there is a oversize magma chamber where the magma is. The explosive power of a volcano depends on how much gas is trapped in the magma. When there is a lot of gas trapped in the magma the eruptions are more explosive, and when there is less gas the eruptions are less...If you want to get a full essay, order it on our website: Orderessay
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