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प्रश्न
Describe the materials thrown out during volcanic eruption.
उत्तर
The materials thrown out of a volcano due to eruptions are of three types :
- Solid materials:- The solid materials include large fragments of rocks known as volcanic Bombs. The finest particles include cinder volcanic ash dust.
- Liquid materials:- The liquid materials include basic lava and Acid lava. Acid lava has more silica while Basic lava has a low content of Silica.
- Gaseous materials:- The gaseous material is mainly composed of steam. The other gases include Oxygen Hydrogen Sulphuric acid Carbon dioxide etc.
संबंधित प्रश्न
Explain the types of volcanoes on the basis of periodicity of eruption with examples.
What is a volcano?
Give one example each of an active volcano and a dormant volcano.
Name two types of landforms made by volcanoes.
Fill in the blank below:
The molten rock that reaches the surface of the earth is called ______.
Fill in the blank below:
A lava ___________is made up of basic lava flows solidified away from the vent.
Explain the various parts of a volcano.
Which volcano is known as the ‘lighthouse of the Mediterranean?
Indicate the world distribution of active volcanoes.
Distinguish between :
Seismology and Volcanology.
Distinguish between :
Volcanic Dust and Volcanic Ash.
Describe any three advantages of volcanoes.
Give two of its main characteristics of Geysers
Name a well known geyser.
Give reasons for the following:
Basic lava cones are broader than Acid lava cones.
Give one word for the following :
A volcano where magma reaches the surface through a vent or a pipe..
What is the following :
Fissure type of volcanoes
______ Volcano is known as light house of Mediterranean Sea.
An example for active volcano is ______.
Distinguish between Active volcano and dormant volcano
How many active volcanoes in the world?
