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प्रश्न
Give reasons for the following:
Basic lava cones are broader than Acid lava cones.
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
What is the difference between magma and lava?
Give one example each of an active volcano and a dormant volcano.
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Fill in the blank below:
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A lava ___________is made up of basic lava flows solidified away from the vent.
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Seismology and Volcanology.
Distinguish between :
Volcanic Dust and Volcanic Ash.
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Give one word for the following :
The lava which is poor in silica and rich in iron and magnesium.
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A volcano whose eruption buried and destroyed two Roman towns.
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OR
What is the importance of volcanoes?
OR
Mention adverse and beneficial effects of volcanoes.
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