Explain in brief ,how a volcanic eruption is caused?
Answers
Answer:
Volcanoes are formed by eruptions of lava and ash when magma rises through cracks or weak-spots in the Earth's crust. A build up of pressure in the earth is released, by things such as a plate movement which forces molten rock to exploded into the air causing a volcanic eruption.
Answer:
The causes of a volcanic eruption are Heat and Pressure inside the Earth ,Plate Tectonics and Magma Chamber .
Explanation:
An eruption occurs when lava and gas are released from a volcano, frequently in an explosive manner. The most dangerous sort of eruption is known as a "glowing avalanche," which happens when recently erupted lava rolls down a volcano's flanks. They can move quickly and reach temperatures of 1,200 degrees Fahrenheit.
Heat and Pressure inside the Earth : From the surface of the earth toward its centre, pressure and temperature both rise. Rocks are poor heat conductors. Therefore, the heat of the earth cannot leave on its own. Instead, it causes the rocks to melt and generates a lot of pressure. The heat must find a way out through fissures and cracks in the rocks due to the pressure.
Plate Tectonics : The majority of volcanic eruptions happen close to plate boundaries. Volcanic eruptions are caused by the same forces that create earthquakes.
Magma Chamber : While still beneath the earth's crust, the molten substance melts weak rocks and carves out a sizable chamber for itself. Magma from new eruptions keeps flooding the chamber. Since silicate minerals, gases, and water vapour are present in magma, pressure always exerts itself vertically upward. Once a route is discovered, it comes to the fore.
To know more about "Plate Tectonics "
https://brainly.in/question/21403141
To know more about "water vapour "
https://brainly.in/question/12439033
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