KA

Kanishk AggarwalAIR 72· 2025

(10 marks, 150 words)GS1GS1

Explain chemical weathering with suitable examples.

Open scan (p.13)

Introduction

Weathering is the gradual breakdown of rocks to form soil.

10 words

Main Body

Physical WeatheringTemperature, Rain, Vegetation, Ice/WaterChemical leading weathering carbonate. Interdependence between physical and chemical weathering: Physical weathering attacks the outer surface of rocks, paves way for chemical action. Physical weathering becomes efficient in high moisture region where chemical weathering reduces (eg Western hills). Physical weathering allows the coastal formation when the chemical action can take place. Chemical weathering becomes efficient in case of limestone, where physical weathering is difficult due to hardness. They act in a complementary fashion one aiding another. Float physical weathering, the larger surface area of weathered rocks is easily disbanded by chemical weathering. Chemical weathering is simpler where drained temperature not vary much. Physical weathering exposes the leaching chemicals across the breadth of rocks, giving it a simpler process.
126 words1 paragraphs

Conclusion

True, the interdependence can help geologists further study the lithosphere and aid in earth's development.

15 words

Diagram

Flow diagram showing: Rock (unweathered) → Rock by physical action → Enlarged by chemical action

  • Includes diagram showing weathering process
  • Explains interdependence between physical and chemical weathering
  • Mentions specific rock types (limestone)
  • Discusses environmental factors
  • Good structure with examples

Topper

Kanishk Aggarwal

AIR 722025

Subject & Paper

GS1GS1

Topic

Salient features of World's Physical Geography

Weathering processes

Chemical weathering and physical-chemical interdependence

Writing Stats

151

Total words

1

Paragraphs

formal analytical

Tone