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Amrit MahapatraAIR 121

GS1GS1

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AnswerStrengthsGapsKeywords

Main Body

Intraplate Boundary: There, while here, is no subduction, there is release of tension between plates — sliding past each other. Ex: Gujarat Earthquake was due to a transform boundary.

Understanding of Plate Tectonics has led to:

Better Predictability of Seismic tension
Disaster preparedness measures
Better reconstruction steps

Thus the development of the theory has imparted a scientific movement to the geological shift through Earth's history,

Ocean Salinity is a measure of how much salt content (parts per billion) is present in the water body.

Factors Responsible for Variations in Salinity:

Sunlight and Distance from the Equator: Ex. there waterbodies near equator have a higher more brine to being salt-dense
Confluence with Fresh Water Bodies: Ex. Inflow of water from rivers/bays = can lead to reduced salinity.
Amount of Precipitation Received: Ex. can dilute the salinity of a water body

Depth of the Water Body: Ex. Water at the surface evaporates and more prone to being salt-dense

Multi-Dimensional Impacts of Salinity

Increasing Salinity of water bodies have chance of spilling over to fresh water ? Decreasing potable water,
Survivability of marine organisms. Ex: fresh water fish may not tolerate high levels of salinity.
May have impact on livelihood of fisherfolk due to salinity in catch.
May impact on coral which are possessors of biodiversity.

Way Forward.

Ocean Salinity may also have multiple effects for some business activities 'Need to leverage
Undertake R&D to guarantee the scientific impasse of Salinity,
Attempt alternative livelihood programs such as hydroponics for impaired fisherfollk.
Concerted efforts to preserve corals and increase biodiversity.
270 words16 paragraphs

Conclusion

There is a need to amplify the positive impacts of ocean salinity and also minimise adverse one for 'Clean India', 'Green India'.

22 words

  • Clear explanation of intraplate boundary with example
  • Outlines practical applications of Plate Tectonics theory
  • Mentions disaster preparedness as outcome of theory development

Open original scan

Page 28

Topper

Amrit Mahapatra

AIR 121

Subject & Paper

GS1GS1

Topic

Geophysical Phenomena

Geophysical Phenomena

Plate Tectonics and Intraplate Boundaries

Writing Stats

292

Total words

16

Paragraphs

Technical and explanatory

Tone