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प्रश्न
Account for the two types of weathering.
उत्तर
Weathering may be :
- Mechanical : weathering is the disintegration of rocks by mechanical forces, without chemical changes.
- Chemical : weathering is the gradual decomposition of the rock owing to the reaction and combination of the constituent minerals of the rock with oxygen or carbon dioxide present in the atmosphere. In Chemical weathering the presence of water is essential.
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संबंधित प्रश्न
Give geographical reason:
Temperature changes result in physical weathering.
In which regions of the world is ‘frost action’ the common form of weathering?
Make a chart for your classroom showing the causes of different types of weathering.
What is known as Sheet Wash?
Say whether the following is ‘True’ or ‘False’.
External forces are engaged only in erosion
What is weathering?
Rewrite the following sentence, choosing the right word from the options given below:
_______is produced by the decayed organic material, including dead leaves, stems roots, living bacteria, fungi, worms, and other organisms.
Give reasons for the following :
Grassland soils are less acidic than forest soils.
Which one of the following materials is affected by hydration process?
Name three types of weathering.
