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प्रश्न
State two characteristics of the mantle.
टीपा लिहा
उत्तर
- The mantle is semi-solid.
- It is rich in iron and magnesium.
- This layer is about 2,850 km wide. Its average density is between 3.5 and 5.5.
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Rock and it's Types
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संबंधित प्रश्न
Name any two chief characteristics of Igneous Rocks.
How are chemically-formed sedimentary rocks formed? Give examples.
Classify the following rock: Limestone
Give an example of a Plutonic rock.
Distinguish between Metamorphic rock and sedimentary rock.
______ rocks are also called Primary rocks.
Minerals exist in nature ¡n the form of ______ or ______.
Match the following:
| Group 'A' | Group 'B' | ||
| A. | Granite | 1. | Bedrock |
| B. | Soil layer | 2. | Plutonic rock |
| C. | Barren island | 3. | Strip farming |
| D. | Soil conservation | 4. | Active Volcano |
Match the following.
| A. | Basalt | 1. | Anthracite |
| B. | Limestone | 2. | Extrusive igneous |
| C. | Coal | 3. | Metamorphic rock |
| D. | Gneiss | 4. | Sedimentary rock |
Statement (1): Sedimentary rocks consist of many layers.
Statement (2): Sedimentary rocks are formed by the sediments deposited at different points of time.
