Science & Technology Prelims Question

Weathering is defined as mechanical disintegration and chemical decomposition of rocks, through the actions of various elements of weather and climate.
There are three major groups of weathering processes: (i) chemical; (ii) physical or mechanical; and (iii) biological weathering processes.
Hydration and carbonation, both are types of chemical weathering.
Carbonation is the reaction of carbonate and bicarbonate with minerals and is a common process helping the breaking down of feldspars and carbonate minerals.
Hydration is the chemical addition of water. Minerals take up water and expand. This expansion causes an increase in the volume of the material itself or the rock.
Freezing, thawing and frost wedging, salt weathering etc. are types of physical weathering.

Weathering is defined as mechanical disintegration and chemical decomposition of rocks, through the actions of various elements of weather and climate.
There are three major groups of weathering processes: (i) chemical; (ii) physical or mechanical; and (iii) biological weathering processes.
Hydration and carbonation, both are types of chemical weathering.
Carbonation is the reaction of carbonate and bicarbonate with minerals and is a common process helping the breaking down of feldspars and carbonate minerals.
Hydration is the chemical addition of water. Minerals take up water and expand. This expansion causes an increase in the volume of the material itself or the rock.
Freezing, thawing and frost wedging, salt weathering etc. are types of physical weathering.

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