3 Types Of Volcanoes

1. What is a shield volcano?

Shield volcanoes are small in size and built by thick, viscous lava flows.

Shield volcanoes are formed by explosive eruptions and have steep, conical shapes.

Shield volcanoes are huge in size. They are built by many layers of runny lava flows. Lava spills out of a central vent or group of vents. A broad shaped, gently sloping cone is formed. This is caused by the very fluid, basaltic lava which can't be piled up into steep mounds.

Shield volcanoes are underwater structures that form near tectonic plate boundaries.

A shield volcano differs from other types of volcanoes in terms of size, lava composition, and shape. Understanding these characteristics can help distinguish shield volcanoes from other volcanic structures.

Explanation

A shield volcano differs from other types of volcanoes in terms of size, lava composition, and shape. Understanding these characteristics can help distinguish shield volcanoes from other volcanic structures.

2. What is a composite volcano?

Composite volcanoes are always small in size.

Composite volcanoes are formed by a single layer of lava.

Composite volcanoes, also called strato volcanoes, are formed by alternating layers of lava and rock fragments. This is the reason they are called composite.Strato-volcanoes often form impressive, snow-capped peaks which are often exceeding 2500m in height, 1000sq.km in surface, and 400km3 in volume. Between eruptions they are often so quiet they seem extinct. To witness the start of a great eruption requires luck or very careful surveillance. Composite volcanoes usually erupt in an explosive way. This is usually caused byviscous magma. When very viscous magma rises to the surface, it usually clogs the craterpipe, and gas in the craterpipe gets locked up. Therefore, the pressure will increase resulting in an explosive eruption.

Composite volcanoes do not have any layers of rock fragments.

3. What is a cinder cone volcano?

A cinder cone is a dome-shaped volcano with a wide base.

A cinder cone is a deep crater filled with water from a volcanic eruption.

A cinder cone is a steep conical hill formed above a vent. Cinder cones are among the most common volcanic landforms found in the world. They aren't famous as their eruptions usually don't cause any loss of life. Cinder cones are chiefly formed by Strombolian eruptions. The cones usually grow up in groups and they often occur on the flanks of strato volcanoes and shield volcanoes. Cinder cones are built from lava fragments called cinders. The lava fragments are ejected from a single vent and accumulate around the vent when they fall back to earth. The shape of a cinder cone can be modified during its (short) life. When theposition of the vent alters, aligned, twin or secant cones develop. Nested,buried or breached cones are formed when the power of the eruption varies.

A cinder cone is a flat plateau formed by lava flows.

A cinder cone volcano is a steep conical hill formed above a vent, not a flat plateau, dome-shaped volcano, or a deep crater filled with water from a volcanic eruption.

Explanation

A cinder cone volcano is a steep conical hill formed above a vent, not a flat plateau, dome-shaped volcano, or a deep crater filled with water from a volcanic eruption.

4. What is a volcano?

A volcano is a weather phenomenon caused by heavy rain.

A volcano is a mountain with a vent. It erupts lava but when the lava is in the volcano, it is magma.

A volcano is a type of earthquake.

A volcano is an underground river of water that occasionally erupts.

A volcano is a geological feature that involves the eruption of magma from beneath the Earth's surface. It is not related to earthquakes, weather events, or underground rivers.

Explanation

A volcano is a geological feature that involves the eruption of magma from beneath the Earth's surface. It is not related to earthquakes, weather events, or underground rivers.

5. If you want to know the source of information about different types of volcanoes, where can you find it?

Http://www.volcanoesarecool.com

Http://volcanoes.encyclopedia.org

Http://library.thinkquest.org/17457/volcanoes/types.php

Https://www.volcanoesrus.gov

6. What is magma?

Magma is a type of underground flower species that only grows in caves.

Magma is a type of cloud formation often seen during thunderstorms.

Magma is a type of rock that can only be found on the Moon.

Magma is molten rock that is found beneath the surface of the Earth, and may also exist on other terrestrial planets.

Magma is molten rock beneath the Earth's surface and on other terrestrial planets, not a cloud formation, a type of rock found only on the Moon, or an underground flower species.

Explanation

Magma is molten rock beneath the Earth's surface and on other terrestrial planets, not a cloud formation, a type of rock found only on the Moon, or an underground flower species.

7. What is lava?

Lava is molten rock expelled by a volcano during eruption.

Lava is a type of highly pressurized gas found within the Earth's crust.

Lava is a type of igneous rock formed underground.

Lava is a type of sedimentary rock formed by the weathering and erosion of other rocks.

Lava is the molten rock that flows during a volcanic eruption, it is not a type of igneous, sedimentary, or gaseous substance.

Explanation

Lava is the molten rock that flows during a volcanic eruption, it is not a type of igneous, sedimentary, or gaseous substance.

8. What is a vent?

The act of expressing one's feelings or thoughts openly and freely

A fissure in the earth's crust (or in the surface of some other planet) through which molten lava and gases erupt

A device used in heating, ventilation, and air conditioning systems

An opening in a closed space to allow air or gas to escape

A vent, in the context of geology and volcanology, refers to a fissure in the earth's crust (or in the surface of some other planet) through which molten lava and gases erupt. It is not related to ventilation systems, openings for air or gas escape, or expression of feelings and thoughts.

Explanation

A vent, in the context of geology and volcanology, refers to a fissure in the earth's crust (or in the surface of some other planet) through which molten lava and gases erupt. It is not related to ventilation systems, openings for air or gas escape, or expression of feelings and thoughts.

9. What is an eruption?

A sudden outburst of laughter

The sudden occurrence of a violent discharge of steam and volcanic material

A volcanic explosion

A burst of anger

An eruption specifically refers to the discharge of steam and material in a volcanic context, not related to laughter, general explosions, or emotional outbursts.

Explanation

An eruption specifically refers to the discharge of steam and material in a volcanic context, not related to laughter, general explosions, or emotional outbursts.