Question 6DescribeGS1GS1

How are ocean trenches formed? Describe the significant characteristics of these oceanic relief formations. (Answer in 150words)

Introduction

Ocean Trenches are oceanic landforms formed at margins of tectonic plates as explained by Morson, Parker & McKenzie.

18 words

Main Body

Formation: (1) Formed due & subduction of oceanic plate under continental plate as IID bearer. (2) Subducting plate - Goes to Mantle & melt causing volcanie arcs & flat mountains. (Es) Alpi Andes

Characteristics: (1) Deepest Part - of Earth's crust. (Es) Mariana trench in Challneger Deep

(Es) Mariana trench in Challequer Deep

2Thermal Vent: due & released Earth's geothermal energy

3Habitat: & chemosynthetic bacteria

4Earthquakes: ocun due & released pressure at plate boundary. (Es) Sunda Trench

5Destruction of Plate: at trench due to subduction in molten mantle.

92 words2 paragraphs

Conclusion

Trenches are Critical part of oceanic landforms & play key role in plate tectonics.

14 words

Diagram

Diagram showing trench formation with plate boundary, mantle, and subduction zone labeled

Provides theoretical framework with reference to Plate Tectonics theorists
Includes specific examples of ocean trenches
Diagram aids explanation
Addresses both formation and characteristics

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Page 16

Topper

Aditya Mathur

AIR 98

Subject & Paper

GS1GS1

Topic

World Physical Geography

Phenomena

Ocean trenches and oceanic relief formations

Writing Stats

124

Total words

Paragraphs

Academic/Technical

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