1 : a vent in the crust of the earth or another planet or a moon from which usually molten or hot rock and steam issue also : a hill or mountain composed wholly or in part of the ejected material.
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.
Subsequently, What is Volcano very short answer?
A volcano is an opening in the earth’s crust through which lava, volcanic ash, and gases escape. Volcanic eruptions are partly driven by pressure from dissolved gas, much as escaping gases force the cork out of a bottle of champagne.
Also, What is a volcano Class 9?
Volcanoes are the vents in the earth’s crust erupting hot magma from the interior core motivated by endogenic forces.
What’s another word for volcano?
mountain peak
———- ——–
serac puy
promontory headland
scar barranca
barranco overhang
Last Review : 14 days ago.
How many volcanoes are active today?
1,500 volcanoes
What does volcano mean?
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.
What are the two definition for the term volcano?
1 : a vent in the crust of the earth or another planet or a moon from which usually molten or hot rock and steam issue also : a hill or mountain composed wholly or in part of the ejected material. 2 : something of explosively violent potential.
What is Volcano short answer?
The Short Answer: A volcano is an opening on the surface of a planet or moon that allows material warmer than its surroundings to escape from its interior. When this material escapes, it causes an eruption. Lava fountain at Kīlauea Volcano, Hawai`i.
What is volcano Ncert?
An opening in the earth’s crust that allows hot molten lava, ash and gases to escape from below the surface, is called a volcano. … Raise in temperature and pressure force the magma to flow out through an opening in the earth’s surface, as lava in a volcanic eruption.
What is the most active volcano today?
Mauna Loa
Is Volcano good or bad?
Volcanoes are very dangerous, and can kill people and animals. They can destroy houses and buildings. But there are advantages of living near a volcano. Volcanoes provide energy we can use, also called geothermal resources.
How many volcanoes are erupting right now?
45 volcanoes
What is a volcano for Class 7?
A volcano is an opening in the earth’s crust through which lava, volcanic ash, and gases escape. Volcanic eruptions are partly driven by pressure from dissolved gas, much as escaping gases force the cork out of a bottle of champagne.
How many active volcanoes are there in 2020?
There are about 1,500 potentially active volcanoes worldwide, aside from the continuous belts of volcanoes on the ocean floor at spreading centers like the Mid-Atlantic Ridge.
What are the 5 most active volcanoes?
– Intro. (Image credit: Jesse Allen) …
– Sangay, Ecuador – 94 years. (Image credit: Ecuador Ministry of Tourism) …
– Santa María, Guatemala – 101 years. (Image credit: dreamstime) …
– Stromboli, Italy – 108 years. (Image credit: stock.xchng) …
– Mount Etna, Italy – 109 years. …
– Mount Yasur, Vanautu – 111 years.
What is lava class 7th?
Lava can be defined as the hot molten rock that gets shot out of the surface of the Earth, this is a semi-solid, burning hot substance that comes out of the Earth’s surface. The temperatures at which the molten lava usually vary, however, they range from 1300 to 2200 degrees.
What is a volcano Class 5?
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. Gases and rock shoot up through the opening and spill over or fill the air with lava fragments.
What is a volcano simple definition?
A volcano is a mountain that has lava (hot, liquid rock) coming out from a magma chamber under the ground, or did have in the past.
What’s the most active volcano right now?
Kilauea volcano
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