A volcano is a hole in Earth's surface through which magma (called lava when it reaches Earth's surface), hot gases, ash, and
rock fragments escape
from deep inside the planet. The word volcano also is used to describe the cone of erupted material (lava and ash) that builds up around the opening.
What is a volcano description?
A volcano is
a mountain that opens downward to a pool of molten rock below the surface of the earth
. When pressure builds up, eruptions occur. In an eruption, gases and rock shoot up through the opening and spill over or fill the air with lava fragments. … The danger area around a volcano covers about a 20-mile radius.
Which of the following best describe the parts of volcano?
Sill –
A flat piece of rock formed when magma hardens in a crack in a volcano. Vent – An opening in Earth's surface through which volcanic materials escape. Flank – The side of a volcano. Lava – Molten rock that erupts from a volcano that solidifies as it cools.
How do you describe volcano in general?
A volcano is
a rupture in the crust of a planetary-mass object
, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. On Earth, volcanoes are most often found where tectonic plates are diverging or converging, and most are found underwater.
What are 10 facts about volcano?
- There are Three Major Kinds of Volcanoes: …
- Volcanoes Erupt Because of Escaping Magma: …
- Volcanoes can be Active, Dormant or Extinct: …
- Volcanoes can Grow Quickly: …
- There are 20 Volcanoes Erupting Right Now: …
- Volcanoes are Dangerous: …
- Supervolcanoes are Really Dangerous:
What is volcano in simple words?
A volcano is
an opening in the earth's crust through which lava, volcanic ash, and gases escape
. … Beneath a volcano, liquid magma containing dissolved gases rises through cracks in the Earth's crust. As the magma rises, pressure decreases, allowing the gases to form bubbles.
What are the main parts of volcano?
The three main parts of a volcano are
the chamber, the vent, and the crater
.
What are the five characteristics of volcano?
- Fissure Volcanoes. …
- Shield Volcanoes. …
- Stratovolcanoes. …
- Cinder Cone. …
- Caldera.
What are the 5 main parts of a volcano?
The main parts of a volcano include
the magma chamber, conduits, vents, craters and slopes
.
What is the description of Mayon Volcano?
Mayon Volcano, active volcano, southeastern Luzon, Philippines, dominating the city of Legaspi. Called
the world's most perfect volcanic cone because of the symmetry of its shape
, it has a base 80 miles (130 km) in circumference and rises to 8,077 feet (2,462 metres) from the shores of Albay Gulf.
What is the use of volcano?
“It gives us really fertile soils, which are great for
farming and crops
.” Volcanoes also provide a good environment for the formation of new habitats for animals, plants and insects, she said. Hot springs and geothermal energy are additional benefits.
What are 5 interesting facts about volcanoes?
- Volcanoes are openings of the Earth's surface. …
- The word volcano comes from the word ‘vulcan'. …
- Volcanoes can be active, dormant or extinct. …
- The liquid inside the volcano is called magma. …
- Lava is the liquid that is expelled from the volcano. …
- Lava is very, very hot!
What is the largest volcano?
Mauna Loa on the Island Hawaiʻi
is the world's largest volcano. People residing on its flanks face many hazards that come with living on or near an active volcano, including lava flows, explosive eruptions, volcanic smog, damaging earthquakes, and local tsunami (giant seawaves).
What are 10 facts about earthquakes?
- Earthquakes usually happen on the edge of tectonic plates. …
- Earthquakes occur when the plates get stuck but keep trying to move! …
- Before an earthquake foreshocks might occur. …
- After an earthquake aftershocks are likely to happen.
What causes volcano?
On land, volcanoes form when
one tectonic plate moves under another
. Usually a thin, heavy oceanic plate subducts, or moves under, a thicker continental plate. … When enough magma builds up in the magma chamber, it forces its way up to the surface and erupts, often causing volcanic eruptions.
