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प्रश्न
Distinguish between :
Volcanic Dust and Volcanic Ash.
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उत्तर
Volcanic Dust: The finely pulverised fragments of rock are called volcanic ash.
Volcanic Ash: very fine particles which blow into the air are called volcanic dust.
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 two types of landforms made by volcanoes. Give an example of each type.
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.
Match the Following:
| Column A | Column B |
| 1. Vent | (a) An active volcano |
| 2. Extinct | (b) Hot water fountain |
| 3. Geyser | (c) Dead Volcano |
| 4. Mt. Stromboli | (d) An opening in the earth's crust through which lava flows. |
| 5. Cinder Cone | (e) A volcanic landform. |
Fill in the blank below:
The Circum-Paciflc Belt is also called ____________.
Explain the various parts of a volcano.
Distinguish between :
Seismology and Volcanology.
Describe the effect of volcanic eruption of Karakatoa in 1883.
Describe any three advantages of volcanoes.
Give two of its main characteristics of Geysers
Name a well known 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.
Give reasons for the following:
Basic lava cones are broader than Acid lava cones.
Answer the following:
Plate margins are zones of great volcanic activity.
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
What is the following :
Epicentre
______ 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.
Stromboli, Helens, Hawaii, Fujiyama
Choose the odd one
Mt. Popa, Mt. Fujiyama, Mt. Kilimanjaro, Mt. Kenya.
