Geography
Answer
| Physical weathering | Chemical weathering |
|---|---|
| It involves the disintegration of rocks without changing their chemical composition. | It involves the decomposition of rocks through changes in their chemical composition. |
| Agents include temperature changes, frost action, moisture, and wind. | Agents include water, oxygen, carbon dioxide, and organic acids. |
| It is more rapid in desert climates. | It occurs in moist and cold climates. |
| It mainly affects the surface of rocks. | It can affect rocks to greater depths through joints and cracks. |
Related Questions
Distinguish between Carbonation and Solution.
Define weathering and describe the chief characteristics of weathering.
Give a geographical reason for each of the following:
(i) Physical weathering is also called mechanical weathering.
(ii) Physical weathering is more rapid in desert climates.
(iii) Chemical weathering occurs in moist and cold climates.
Draw a well labelled diagram to show the process of physical weathering.