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प्रश्न
What is a geyser?
What do you mean by geysers?
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उत्तर
A geyser is a fountain of hot spring that intermittently spouts jets of steam and hot water. It erupts periodically, blasting hot boiling water high into the air. Geysers are rare natural features, with about 1000 found worldwide; the maximum number are in Iceland. The term “geyser” comes from the Icelandic word “geysir, meaning “to gush”.
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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.
Name the three types of volcanoes on the basis of the frequency of their eruption.
What are known as Shield volcanoes?
How are hot springs formed?
The forces arising from the interior of the earth:
Fill in the blank below:
A lava ___________is made up of basic lava flows solidified away from the vent.
Name the largest active volcano in the world.
Which volcano is known as the ‘lighthouse of the Mediterranean?
Name the three belts where volcanoes are found.
Distinguish between :
Seismology and Volcanology.
Distinguish between :
Volcanic Dust and Volcanic Ash.
Name a well known geyser.
Differentiate between active dormant and extinct volcanoes.
What is the following:
‘Ring of Fire’
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 volcano which has the possibility of erupting in future.
Give one word for the following :
A volcano where magma reaches the surface through a vent or a pipe..
Which four of the following words are connected with volcanic activity:
Karst, crater, drumlin, stalactite, gully, potholesl, ash, basalt, swallow, holes, dyke, domes, bluffs.
What are the influences of volcanoes eruption on man?
OR
What is the importance of volcanoes?
OR
Mention adverse and beneficial effects of volcanoes.
What is the following :
Epicentre
Describe the classification of volcanoes based on the eruptions.
How many active volcanoes in the world?
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.
