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प्रश्न
Describe any three advantages of volcanoes.
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उत्तर
- Many minerals from the interior of the Earth come on to the surface.
- Fertile soils like Black soil are made by breaking up of lava.
- Electricity is generated from gases emitted out during volcanic eruptions.
संबंधित प्रश्न
Explain the types of volcanoes on the basis of periodicity of eruption with examples.
Give one example of volcanic mountains.
What is the difference between magma and lava?
What is the difference between a dormant volcano and an extinct volcano?
What is called the Pacific Ring of Fire? Why is it called so?
Name the three types of volcanoes on the basis of the frequency of their eruption.
What are known as Shield volcanoes?
The forces arising from the interior of the earth:
Fill in the blank below:
The molten rock that reaches the surface of the earth is called ______.
Name the largest active volcano in the world.
What is a geyser?
State two ways in which lava may come out of the earth’s crust giving an example of each type of these volcanic activities.
Differentiate between active dormant and extinct volcanoes.
Answer the following:
Plate margins are zones of great volcanic activity.
Give one word for the following :
The lava which is poor in silica and rich in iron and magnesium.
Give one word for the following :
A volcano which has the possibility of erupting in future.
Give one word for the following:
A large sill of acid lava which has solidified gradually giving a dome-like shape.
Which type of lavas weather into more fertile soil. Name also one useful feature of volcanicity other than soil fertility.
What is the following :
Fissure type of volcanoes
______ Volcano is known as light house of Mediterranean Sea.
An example for active volcano is ______.
Choose the odd one
Give an example of extinct volcano.
Name the three types of volcanoes based on periodicity of eruption.
Choose the odd one
An active volcano, Dormant volcano, Extinct Volcano, Shield volcano
Choose the odd one
Mt. Popa, Mt. Fujiyama, Mt. Kilimanjaro, Mt. Kenya.
