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प्रश्न
Give reasons for the following:
Basic lava cones are broader than Acid lava cones.
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उत्तर १
Basic lava cones are formed by liquid lava which expands and covers a large area while the Acid cones are formed by solid material e.g. ash cinders etc which heap up but do not cover large area and form a high conical hill as compared to broad and low volcanic deposits on the surface.
उत्तर २
Basic lava cones are broader than the Acid lava cones because basic lava is very fluid and flows easily for a great distance before it solidifies whereas acid lava is highly viscous and flows only for a short distance.
संबंधित प्रश्न
Give one example of volcanic mountains.
What is a volcano?
Give one example of an active volcano.
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Name the three types of volcanoes on the basis of the frequency of their eruption.
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 ______.
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A lava ___________is made up of basic lava flows solidified away from the vent.
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In which belt most of the volcanoes of the world are found?
Describe the materials thrown out during volcanic eruption.
Describe any three advantages of volcanoes.
State two ways in which lava may come out of the earth’s crust giving an example of each type of these volcanic activities.
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The Circum-Pacific Belt of volcanoes is called ‘The Ring of Fire’.
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A large sill of acid lava which has solidified gradually giving a dome-like shape.
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A volcano where magma reaches the surface through a vent or a pipe..
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Distinguish between Active volcano and dormant volcano
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Iceland, the most active volcanic area is located on the ______.
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An active volcano, Dormant volcano, Extinct Volcano, Shield volcano
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Mt. Popa, Mt. Fujiyama, Mt. Kilimanjaro, Mt. Kenya.
