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Elucidate volcano formation their types and structures associated with suitable examples.

Topic: Volcanoes, Earthquakes and Landslides

1. Elucidate volcano formation, their types and structures associated with suitable examples. (250 words)

Reference: Fundamentals of Physical Geography by G C Leong, Fundamentals of Physical Geography – class XI NCERT

Why the question:

The question is from the static portions of GS paper I, portions of World Geography.

Key Demand of the question:

Explain volcano formation, their types and structures associated with suitable examples.

Directive:

Elucidate – Give a detailed account as to how and why it occurred, or what is the particular context. You must be defining key terms where ever appropriate, and substantiate with relevant associated facts.

Structure of the answer:

Introduction:

Define what Volcanoes are.

Body:

A volcano is a vent (opening) in the earth’s crust through which molten material erupts suddenly from a magma chamber below the surface. Due to very high temperature, some rocks slowly melt and turn into a thick flowing matter known as magma. Since it is lighter than the solid rock around it, the magma rises and gets collected in magma chambers which eventually pushes through fissures and vents in the earth’s surface.

Start by discussing their formation.

Mention types of volcanoes with suitable diagrams and description.

Present the various landforms associated with it. Both intrusive and extrusive.

Conclusion:

Conclude with their significant contributions in landform formation.