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Jawahar
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Asked: 2024-12-21T17:11:55+05:30 In:

What is the difference between chemical and physical weathering?

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What is the difference between chemical and physical weathering?

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    1. Pankaj Gupta
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      Comparison of chemical weathering and physical weathering: Aspect Chemical Weathering Physical Weathering Definition The breakdown of rocks through chemical reactions, altering their composition. The mechanical breakdown of rocks into smaller pieces without changing their composition. Process InvolvRead more

      Comparison of chemical weathering and physical weathering:

      AspectChemical WeatheringPhysical Weathering
      DefinitionThe breakdown of rocks through chemical reactions, altering their composition.The mechanical breakdown of rocks into smaller pieces without changing their composition.
      ProcessInvolves chemical reactions such as oxidation, hydrolysis, and carbonation.Involves physical forces like freezing and thawing, abrasion, and temperature changes.
      Main AgentsWater, acids, oxygen, and carbon dioxide.Temperature changes, ice, water, wind, and biological activity.
      Composition ChangeAlters the chemical composition of the rock.No change in the chemical composition of the rock.
      Appearance ChangeRocks may dissolve, change color, or form new minerals.Rocks break into smaller pieces or develop cracks and fractures.
      ExamplesFormation of rust on rocks due to oxidation; limestone dissolving in acid rain.Frost wedging (freeze-thaw cycles), exfoliation, or root wedging by plants.
      Location PreferenceCommon in warm, wet climates where water and acids are abundant.Common in cold or arid climates where physical forces dominate.
      Rate of ProcessGenerally slower but leads to significant long-term changes.Can be rapid in extreme conditions (e.g., freeze-thaw cycles).

      This comparison highlights the distinct ways in which chemical and physical weathering affect Earth’s surface.

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