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प्रश्न
Which type of lavas weather into more fertile soil. Name also one useful feature of volcanicity other than soil fertility.
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उत्तर
Basic – type lava sheet weather into fertile soil e.g.Deccan trap soil. Other useful feature of volcanicity is that the precious minerals come out with the magma near the land surface e.g. diamond and gold etc.
संबंधित प्रश्न
Explain the types of volcanoes on the basis of periodicity of eruption with examples.
Fill in the blanks with suitable words:
Volcanic activity is a ______ movement.
What is the difference between magma and lava?
Give one example of an active volcano.
How are hot springs formed?
The forces arising from the interior of the earth:
Fill in the blank below:
The Circum-Paciflc Belt is also called ____________.
Name the largest active volcano in the world.
In which belt most of the volcanoes of the world are found?
Distinguish between :
Seismology and Volcanology.
Why is volcanic activity often associated with mountain building ?
What is a geyser?
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 reasons for the following:
The Circum-Pacific Belt of volcanoes is called ‘The Ring of Fire’.
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 large sill of acid lava which has solidified gradually giving a dome-like shape.
Give one word for the following :
A volcano where magma reaches the surface through a vent or a pipe..
What is the following :
Spine or plug
______ Volcano is known as light house of Mediterranean Sea.
Distinguish between Active volcano and dormant volcano
How many active volcanoes in the world?
Choose the odd one.
Stromboli, Helens, Hawaii, Fujiyama
Choose the odd one
Mt. Popa, Mt. Fujiyama, Mt. Kilimanjaro, Mt. Kenya.
