Many volcanoes are also mountains. This is called magma, which travels up through volcanoes and flows out as lava. Magma is liquid rock in between the crust and the mantle, formed when part of the lower crust or upper mantle melts.
All the gas builds up pressure, which causes the magma to explode out of the volcano. When magma is thick, the gas bubbles get trapped and the pressure builds up so much that the explosion shoots high up into the air. If magma cools down as it rushes up the vent, it will come out as rock or ash. Volcanoes can be very dangerous.
Earthquakes can happen when a volcano erupts, causing very large waves called tsunamis. If gasses and ash get into the atmosphere, it can even change the weather by causing thunderstorms and cool temperatures.
Volcanologists scientists who study volcanoes can sometimes tell if a volcano is going to erupt by keeping track of earthquakes underneath it. The types of gasses coming out of the vent can also change close to an eruption. Animals living near a volcano may start to act differently, as if they can sense something is going to happen.
These plates can slide against each other, which lets magma from underneath squeeze up through the cracks. When tectonic plates move, it also causes earthquakes. You may get gratis samples and testimonials. Thus, anybody may make order whenever is needed. They are actually cheap. You are free to compare them with the cost of similar sites. We always serve our customers.
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