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प्रश्न
Distinguish between the following pair:
Degradation and aggradation
फरक स्पष्ट करा
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उत्तर
| Sr. No. | Degradation | Aggradation |
| 1. | Wearing down or lowering of land surface. | Building up or raising of land surface. |
| 2. | Caused by erosion (by rivers, wind, glaciers, sea waves). | Caused by deposition of sediments |
| 3. | Creates landforms like valleys, gorges, canyons. | Creates landforms like floodplains, deltas, sand dunes. |
| 4. | Example: River cutting its bed deeper. | Example: River depositing silt on floodplains. |
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Rock and it's Types
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संबंधित प्रश्न
Classify the following rocks by selecting the correct option given below:
Gneiss
Describe the process that leads to exfoliation.
Distinguish between the following:
Sills and Dykes.
Classify the following rock: Gypsum
Give one term for the following statement:
It has a definite chemical composition with its own chemical and physical properties.
Distinguish between Metamorphic rock and sedimentary rock.
How are igneous rocks formed?
Match the following:
| (a) | Igneous | (i) | Magma |
| (b) | Sedimentary | (ii) | Transformation |
| (c) | Metamorphic | (iii) | Gypsum |
| (d) | Molten material | (iv) | Basalt |
| (e) | Rock Cycle | (v) | Marble |
Statement (1): Sedimentary rocks consist of many layers.
Statement (2): Sedimentary rocks are formed by the sediments deposited at different points of time.
Match the following.
| A. | Granite | 1. | Bed rock |
| B. | Soil layer | 2. | Plutonic rock |
| C. |
Barren island |
3. | Strip farming |
| D. | Soil conservation | 4. | Active Volcano |
