Question

Eassy about volcano
150 Words

Answer 1

Answer:

A Volcano is a mountain with a hole where lava (hot,liquid rock) comes from a magma chamber under the ground .Most Volcanoes have a volcanic crater at the top.When a Volcano is active ,materials come out of it.The materials include lava,stream ,gaseous suffer compounds, ash ,and broken rock pieces .When there is enough pressure, the Volcano erupts .Some volcanic eruption blow off the top of the Volcano. The magma comes out ,sometimes slowly .Some eruptions come out at a side instead of the top .Volcanoes are found on planets other than earth .An example is Olympic Mons on Mars .Volcanologist are scientists who study Volcanoes using methods from geology, chemistry, geography, mineralogy ,physics and sociology. Types of volcano _Shield volcanoes ,stratovolcanoes ,Caldera .Classification _Active ,dormant ,extinct.

Explanation:

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Answer 2

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Question

Eassy about volcanoes?

Answer

A volcano is a vent or fissure in Earth's crust through which lava, ash, rock and gases erupt. A volcano is also a mountain formed by the accumulation of these eruptive products. Earth's crust is 40 to 250 miles (64 to 402 kilometers) thick. It is broken up into 14 major and 38 smaller pieces called tectonic plates.A volcano is an opening, or rupture, in a planet's surface or crust, which allows hot, molten rock, ash, and gases to escape from below the surface. Volcanic activity involving the extrusion of rock tends to form mountains or features like mountains over a period of time. Volcanoes are generally found where tectonic plates are diverging or converging. A mid-oceanic ridge, for example the Mid-Atlantic Ridge, has examples of volcanoes caused by "divergent tectonic plates" pulling apart; the Pacific Ring of Fire has examples of volcanoes caused by "convergent tectonic plates" coming together. By contrast, volcanoes are usually not created where two tectonic plates slide past one another. Volcanoes can also form where there is stretching and thinning of the Earth's crust (called "non-hotspot intraplate volcanism"), such as in the African Rift Valley, the Wells Gray-Clearwater volcanic field and the Rio Grande Rift in North America and the European Rhine Graben with its Eifel volcanoes.

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