RR

Ritika RathAIR 48

Question Q.5Briefly discussGS1GS1

Briefly discuss the role of plate tectonics theory in explaining the location of volcanoes. Also, explain the multifarious impacts of volcanoes on the surrounding regions.

Open scan (p.11)

Introduction

Plate tectonics is a scientific theory which explains the origin & formation of volcanoes based on the movement of Tectonic plates

21 words

Main Body

Role of plate tectonics theory in explaining location of volcanoes:

1Convergent boundaries lead to plate formation of volcanoes

Ex - Eastern Island, India

Mt Fuji, Japan

2Divergent boundaries lead to formation of volcanoes

Ex - Mt Helena in mid oceanic ridge

3Transform boundaries do not form volcanoes but lead to earthquakes

Multifarious impact of volcanoes:

1Volcanic eruptions destroy economic and social infrastructure and cause wide spread deaths

Ex - Volcano eruption in Pompeii while volcano 2019

2Cause pollution through emission of CO2, SO2 and also cool the atmosphere
3Lead to formation of volcanic fertile soil

Ex - Deccan traps in India

4Lead to formation of landforms like volcanic islands

Though plate tectonics is the most modern theory it is yet to explain the formation of intra plate volcano activities like those in Hawaii and Iceland.

142 words9 paragraphs

Topper

Ritika Rath

AIR 48

Subject & Paper

GS1GS1

Topic

Important Geophysical Phenomena

Volcanic activity

Writing Stats

163

Total words

9

Paragraphs

technical

Tone