Geography
Answer
| Sl. No. | Oxidation | Hydration |
|---|---|---|
| 1. | The decomposition of rock in which the minerals present in the rocks react with the atmospheric oxygen present in the rain water is called oxidation. | The disintegration of rocks due to chemical union of water with the minerals present in the rocks is called hydration. |
| 2. | The colour of the rocks change in this process. | The volume of rock increases causing stress which leads to disintegration of the rock. |