Q25 (CGS/2026) Geography › World Physical Geography

Consider the following statements :
Statement-I :

Weathering results in mechanical disintegration and chemical decomposition of rocks.

Statement-II :

Weathering is controlled by geologic and geomorphic processes but is independent of climatic factors.

Which one of the following is correct in respect of the above statements?

Both Statement-I and Statement-II are correct and Statement-II explains Statement-I

Both Statement-I and Statement-II are correct but Statement-II does not explain Statement-I

Statement-I is correct but Statement-II is not correct

Statement-I is not correct but Statement-II is correct

Result

Your answer: — · Correct: C

Explanation

Statement-I is correct. Weathering is defined as the mechanical disintegration and chemical decomposition of rocks through the actions of various elements of weather and climate. It is an in-situ or on-site process.

Statement-II is incorrect. Weathering is highly dependent on climatic factors. In fact, climate (specifically temperature and precipitation) is the most important factor in determining the rate and type of weathering. For instance, chemical weathering is most intense in hot and humid tropical climates, while physical weathering processes like frost wedging are dominant in cold climates. While geologic (rock structure) and geomorphic (topography) factors do influence weathering, climatic factors are fundamental drivers, making the statement that weathering is "independent" of them false.

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SIMILAR QUESTIONS

Statement I : The process of decay and disintegration of rocks in situ is called weathering. Statement I : Weathering takes place both mechanically and chemically.

Statement I: Decay and disintegration of rocks in situ is called weathering Statement II: Mechanical weathering is mainly caused by temperature variation

Consider the following statements : Statement-I : Rainfall is one of the reasons for weathering of rocks. Statement-II : Rain water contains carbon dioxide in solution. Statement-III : Rain water contains atmospheric oxygen. Which one of the following is correct in respect of the above statements ?

Consider the following statements : 1. Crystallization is a form of mechanical weathering. 2. Hydration causes granular, disintegration. 3. Frost action is synonymous with freezethaw action. Which of the statements given above are correct?

Statement I: Chemical weathering processes are found more active in hot and humid environment. Statement II: High temperature and rainfall help in the process of decomposition of rocks.