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Mnemonics : Geomorphology | General Awareness for SSC CGL PDF Download

This document will help you understand the key concepts of Geomorphology in a simple and engaging way. Inside, you'll find easy memory tricks (mnemonics) to help you recall important landforms, geological processes, plate tectonics, weathering, and erosion patterns.

Mnemonics : Geomorphology | General Awareness for SSC CGL

Whether you're preparing for the UPSC, SSC CGL, or any other competitive exam, these mnemonics will make studying Geomorphology easier and more effective. Use them alongside your regular studies to grasp concepts quickly and retain information for a longer time!

1. Types of Volcanoes

Mnemonic: Some Cool Cats Find Magma

  • S – Shield Volcanoes
  • C – Composite Volcanoes
  • C – Caldera
  • F – Flood Basalt Provinces
  •  M – Mid-Ocean Ridge Volcanoes

2.  Endogenic Forces

> Types of Endogenic Forces
Mnemonic: Dogs Vomit Suddenly

  • – Diastrophism
  • V – Volcanism
  •  S – Sudden Movements (Earthquakes, Tsunamis)

> Types of Diastrophism

Mnemonic: Old Elephants Dance Wildly

Mnemonics : Geomorphology | General Awareness for SSC CGL

  • – Orogeny (Mountain building)
  •  E – Epeirogeny (Continental uplift/subsidence)
  • D – Deformation (Folding, warping, fracturing)
  •  W – Warping (Bending of earth’s crust)

> Difference Between Orogeny and Epeirogeny

Mnemonic: Orogeny = Overlapping, Epeirogeny = Expansion

Orogeny  : Forms mountains by overlapping rock layers through folding.
 Epeirogeny : Causes continental expansion or subsidence without much folding.


>  Causes of Endogenic Forces

Mnemonic : Real Tigers Hunt Prey

  • R – Radioactivity (Heat from radioactive decay)
  •  T – Tidal friction (Movement of ocean tides)
  • H – Heat flow (Primordial heat from Earth’s formation)
  • P – Pressure changes (Internal pressure causing deformation)
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3. Exogenetic forces

> Denudation (4 Phases)
Mnemonics : Geomorphology | General Awareness for SSC CGL

Mnemonic:  We Eat Thick Dal

  • W – Weathering
  • – Erosion
  • – Transportation
  • D – Deposition
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Mnemonics : Geomorphology
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4. Weathering

Types of Weathering

>Physical/Mechanical Weathering
Mnemonics : Geomorphology | General Awareness for SSC CGL
Mnemonic: Four Elephants Gather Slowly

  • F – Frost action
  • E – Exfoliation
  • G – Granular disintegration
  • S – Salt weathering

>Chemical Weathering
Mnemonic: Cold Oranges Have Acidic Drops

  • C – Carbonation
  • O – Oxidation
  • H – Hydrolysis
  • A – Acid action
  • D – Dissolution

> Biological Weathering
Mnemonic: Bats And Monkeys

  • B – Bacteria
  • – Animals
  • – Microbes
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 5. Landslides

> Types of Landslides
Mnemonic: Five Tigers Love Small Snacks

  • F – Falls
  • – Topples
  • L – Lateral spreads
  • S – Slides
  • – Slumps

6.  Seafloor Spreading

 >Steps of Seafloor Spreading: "H.O.M.E."

Mnemonics : Geomorphology | General Awareness for SSC CGL

Mnemonic: H.O.M.E.

  • H – Heat from mantle convection
  • O – Ocean ridges form as magma rises
  • M – Magma cools, creating new crust
  • E – Expansion pushes older crust away
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FAQs on Mnemonics : Geomorphology - General Awareness for SSC CGL

1. What are the different types of volcanoes and how do they differ from each other?
Ans. There are four main types of volcanoes: shield, stratovolcano (composite), cinder cone, and fissure volcanoes. Shield volcanoes have broad, gentle slopes and are primarily built from low-viscosity lava flows. Stratovolcanoes, also known as composite volcanoes, have steeper profiles and are characterized by explosive eruptions and layers of ash and lava. Cinder cone volcanoes are the smallest type, formed from the accumulation of volcanic debris around a single vent. Fissure volcanoes occur when lava erupts from long cracks in the ground, creating wide, flat areas of basalt.
2. What are endogenic forces and how do they shape the Earth's surface?
Ans. Endogenic forces are internal processes that originate within the Earth, primarily driven by tectonic activity, such as earthquakes, volcanic eruptions, and mountain-building processes. These forces are responsible for the formation of various geological features, including mountains, rift valleys, and ocean basins. They contribute to the dynamic nature of the Earth's crust by causing movements that can uplift or depress landforms over geological time scales.
3. What are exogenetic forces and their impact on the landscape?
Ans. Exogenetic forces are external processes that occur at or near the Earth's surface, including weathering, erosion, and sedimentation. These forces are influenced by factors such as wind, water, ice, and temperature changes. They play a crucial role in shaping the landscape by breaking down rocks and transporting sediments, creating features like valleys, canyons, and deltas over time.
4. How does weathering occur and what are its types?
Ans. Weathering is the process of breaking down rocks and minerals at the Earth’s surface through physical, chemical, and biological means. Physical weathering involves mechanical processes, such as freeze-thaw cycles and abrasion, which break rocks into smaller pieces. Chemical weathering involves chemical reactions, such as oxidation and hydrolysis, that alter the mineral composition of rocks. Biological weathering occurs due to the actions of living organisms, like plant roots growing into rocks and breaking them apart.
5. What causes landslides and what are the different types?
Ans. Landslides are caused by a combination of factors, including gravity, soil saturation, and the slope of the land. They can occur when the stability of a slope is compromised by heavy rainfall, earthquakes, volcanic activity, or human activities like deforestation and construction. The different types of landslides include rockfalls, debris flows, slides, and slumps, each differing in the materials involved and the mechanisms of movement.
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