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प्रश्न
State two characteristics of the mantle.
State two chief characteristics of the mantle.
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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.
संबंधित प्रश्न
Why is coal hard and chunky?
What is crust?
What are minerals?
Classify the following rocks by selecting the correct option given below:
shale
Classify the following rocks by selecting the correct option given below:
gypsum
Explain the structure of the earth’s interior?
Name any three elements of the earth’s crust.
Name the rocks which are most widespread on the earth.
Distinguish between the following:
Acid Igneous Rocks and Basic Igneous Rocks.
What is metamorphism?
How are chemically-formed sedimentary rocks formed? Give examples.
Distinguish between Regional and Contact metamorphism.
Classify the following rock: Dolomite
Classify the following rock: Loess
Classify the following rock: Basalt
Classify the following rock: Schist
Give one word for the following.
The upper part of lithosphere, which is rich in silica and aluminium.
Give one word for the following.
Igneous rocks, which contain a low percentage of silica.
Fill in the blanks
Extrusive rocks are also known as ______ rocks.
Give one example of an area of: Metamorphic rocks,
Give reasons for the following
Rocks are of great economic significance.
Match the following:
| A. | Basalt | 1. | Anthracite |
| B. | Limestone | 2. | Extrusive igneous |
| C. | Coal | 3. | Metamorphic rock |
| D. | Gneiss | 4. | Sedimentary rock |
Distinguish between Metamorphic rock and sedimentary rock.
Mention a few specimens of magnificent rock-cut architecture in India?
Rocks are classified into ______ types.
What are the uses of soil?
Intrusive Igneous rocks are also called ______ rocks.
Sedimentary rocks are called stratified rocks.
Match the following.
| Group A | Group B | ||
| A. | Basalt | 1. | Anthracite |
| B. | Limestone | 2. | Extrusive igneous |
| C. | Coal | 3. | Metamorphic rock |
| D. | Gneiss | 4. | Sedimentary rock |
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 |
