Advertisements
Advertisements
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
Explain the types of volcanoes on the basis of periodicity of eruption with examples.
What is a volcano?
Give one example each of an active volcano and a dormant volcano.
What is the difference between dormant volcano and an extinct volcano?
What are known as Shield volcanoes?
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 molten rock that reaches the surface of the earth is called ______.
Fill in the blank below:
A lava ___________is made up of basic lava flows solidified away from the vent.
Which volcano is known as the ‘lighthouse of the Mediterranean?
What is the following:
‘Ring of Fire’
Give one word for the following :
A volcano where magma reaches the surface through a vent or a pipe..
Give one word for the following :
A volcano whose eruption buried and destroyed two Roman towns.
Which type of lavas weather into more fertile soil. Name also one useful feature of volcanicity other than soil fertility.
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 is the following :
Fissure type of volcanoes
What is the following :
Epicentre
______ Volcano is known as light house of Mediterranean Sea.
Choose the odd one
Name the three types of volcanoes based on periodicity of eruption.
Distinguish between Active volcano and dormant volcano
How many active volcanoes in the world?
Iceland, the most active volcanic area is located on the ______.
Choose the odd one
An active volcano, Dormant volcano, Extinct Volcano, Shield volcano
