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Geography

Weathering: physical, chemical, and biological

In Class 11 Geography, this topic from the chapter “Geomorphic Processes” explains weathering as the breakdown and alteration of rocks at or near Earth’s surface without transporting the material. Students learn how physical weathering acts through temperature changes, pressure release, and frost; how chemical weathering involves processes such as solution, carbonation, oxidation, hydration, and hydrolysis; and how plants, animals, and microorganisms drive biological weathering. The topic also connects climate, rock type, relief, and time with soil formation and landscape development.

Easy · Level 6 · 25 questions

TOPIC PRACTICE

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25 questions

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  1. They make rock into Sun
  2. They dry oceans
  3. They loosen soil and rocky material
  4. They change Earth's axis
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  1. It always ends weathering
  2. It instantly turns rock into gold
  3. No relation with weathering
  4. It can increase weathering by exposing new rock surfaces
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  1. Peeling of layers
  2. Sea salt always disappearing
  3. River flowing backward
  4. Earthquake stopping
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  1. They always remain sharp
  2. They may gradually become rounded
  3. They turn into fire
  4. They never change at all
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  1. All rocks break at the same rate
  2. Weathering occurs only in the sea
  3. Rocks weathering at different rates
  4. Weathering occurs only at night
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  1. Only deep glacial ice
  2. Only volcanic vent
  3. Only dense rainforest
  4. Entry and drying of salty water
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  1. It helps in both physical and chemical actions
  2. It always turns rock into cloud
  3. It never affects rocks
  4. It only gives light
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  1. Transport is necessary in weathering and not in erosion
  2. Weathering occurs in place while erosion includes removal and transport
  3. Both occur only inside Earth
  4. Both always occur by volcanoes
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  1. Only volcanic eruption
  2. Only ocean current
  3. Residual material
  4. Cosmic dust
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  1. Because it only decides names of rivers
  2. Because it changes Earth's age
  3. Because it reduces distance between planets
  4. Because temperature and moisture affect the type of weathering
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  1. Because day-night temperature range may be high
  2. Because sea is always present
  3. Because rain never causes weathering
  4. Because all rocks do not form soil
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  1. Only frost weathering
  2. Chemical weathering
  3. Only glacial erosion
  4. Only meteor impact
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  1. Root pressure and biological weathering
  2. Oxidation and chemical weathering
  3. Thermal expansion and physical weathering
  4. Carbonation and physical weathering
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  1. Weathering may become faster
  2. Weathering becomes impossible
  3. Rocks disappear immediately
  4. Water never reaches
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  1. Only plate movement
  2. Biological and chemical weathering
  3. Only marine deposition
  4. Only eclipse process
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  1. New Sun
  2. Earthquake focus
  3. Rock debris and fine particles
  4. Solar wind
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  1. It changes Earth's shape instantly
  2. It occurs only in sky
  3. It cools the Sun
  4. It weakens rocks and prepares them for later processes
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  1. Higher temperature and moisture
  2. Complete dryness and permanent ice
  3. Only colour of rock
  4. Only name of place
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  1. Oxidation
  2. Frost weathering
  3. Carbonation
  4. Hydrolysis
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  1. Expansion by heat
  2. Rock breaking into pieces
  3. Oxidation of iron minerals
  4. Dust blown by wind
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  1. Erosion
  2. Transportation
  3. Deposition
  4. Weathering
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  1. Only metal
  2. Humus and organic acids
  3. Only volcanic ash
  4. Only iceberg
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  1. Because it only tells distance between planets
  2. Because it ends all weather
  3. Because it helps understand soil and landform development
  4. Because it is only related to marine fish
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  1. They only create seas
  2. They affect temperature, water flow and exposed surface
  3. They instantly turn rock into metal
  4. They always stop weathering
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  1. Because water and air can enter them easily
  2. Because they never break
  3. Because they are found only in space
  4. Because they have no minerals

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