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प्रश्न
Distinguish between the following:
Calcarious and Carbonacious rocks.
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उत्तर
| Calcarious rocks | Carbonacious rocks |
| The sedimentary rocks formed by the deposition of shells and skeletons of sea organisms, such as corals, clams, oysters, etc., are called calcareous rocks due to the excess of calcium. | The sedimentary rocks formed by the deposition of large-scale vegetation and animals, etc., are called carbonaceous rocks due to the excess of carbon. |
| Formed mainly from calcium carbonate. | Formed mainly from carbon-rich plant remains. |
| Made from shells and skeletons of marine organisms. | Made from accumulated, compacted plant material. |
| Examples: Limestone, Chalk. | Examples: Peat, Lignite, Bituminous coal, Anthracite. |
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संबंधित प्रश्न
Discuss the importance of rocks for the construction business.
Classify the following rocks by selecting the correct option given below:
limestone
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Distinguish between the following:
Thermal and Dynamic Metamorphism.
Name the main types of rocks.
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Classify the following rock: Clay
Give one word for the following.
The lower part of ocean floor, comprising mainly of silica.
Fill in the blanks
The interior layer is the core, which is made up mainly of iron and nickel, and is called ______.
What is the basis for the classification of rocks?
Why are the Igneous Rocks called Primary Rocks?
Volcanic mountains are covered with sedimentary rocks.
Diamond is an example of _______ rock.
______ are chemical substances which exist in nature.
| A | B | ||
| A. | Basalt | 1. | Anthracite |
| B. | Limestone | 2. | Extrusive igneous |
| C. | Coal | 3. | Metamorphic rock |
| D. | Gneiss | 4. | Sedimentary rock |
Match the following:
| A. | Basalt | 1. | Anthracite |
| B. | Limestone | 2. | Extrusive igneous |
| C. | Coal | 3. | Metamorphic rock |
| D. | Gneiss | 4. | Sedimentary rock |
Match the following:
| A. | Basalt | 1. | Anthracite |
| B. | Limestone | 2. | Extrusive igneous |
| C. | Coal | 3. | Metamorphic rock |
| D. | Gneiss | 4. | Sedimentary rock |
