Question Q.14DiscussGS1GS1

The configuration of the ocean floor provides essential information about the geological processes that have shaped the Earth's surface. Discuss the major features of the ocean floor and their significance in the study of oceanography. (Answer in 250 words) 15 Marks

Introduction

After the world war-II, major advancements were made in seismic studies that challenged the origin of earth studies prevailing at that time.

22 words

Main Body

Configuration of Ocean floor:

[Diagram showing ocean floor features with labels: mid oceanic ridge, ocean sediment, trenches, seismic flow, equidivulent, lava, ocean-ocean boundary]

Eg. Oceanic floor

Major features of oceanic floor:

1Volcanism at the centre, over ocean-seismic boundary.

2Trenches are present at the ocean-continent boundary.

3Presence of seamounts, atoll, etc features, thus oceanic surface is not smooth.

4Spread of basaltic volcano lava all over the oceanic surface.

Significance in the study of Oceanography:

1Challenging the preconceived notions - Rocks at the centre were new and continents were old, thus both were not formed together (Continental drift theory).

2Explaining emergence of new features - Volcanism promptly at the centre of [illegible] permutation forming 'trenches' → forming continent boundaries.

3Belief rise process take place simultaneously, thus seas do not expand, Plate tectonic theory provided the basis for understanding Plate tectonics.

4It provided the basis for understanding Plate tectonics.

Thus, oceanic floor configuration forms an important part of our understanding of origin of earth.

169 words6 paragraphs

Conclusion

oceanic floor configuration forms an important part of our understanding of origin of earth.

14 words

Diagram

Detailed diagram showing cross-section of ocean floor configuration with labels for mid-oceanic ridge, sediments, trenches, ocean-continent boundary, and various geological features

Contextualizes with post-WWII scientific advancements
Includes clear diagram with labeled features
Covers major structural elements of ocean floor

Open original scan

Page 33

Topper

Nausheen

AIR 9

Subject & Paper

GS1GS1

Topic

Salient features of World's Physical Geography

Ocean floor configuration

Geological features of ocean floor

Writing Stats

205

Total words

Paragraphs

descriptive

Tone