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प्रश्न
Distinguish between the following:
Plutonic and Volcanic rocks.
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उत्तर
| Plutonic rocks | Volcanic Rocks |
| These are intrusive igneous rocks. | These are extrusive igneous rocks. |
| These cool down very slowly due to heat in the interior. | These cool down abruptly due to the lower temperature in the surface region. |
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संबंधित प्रश्न
Why is diamond clear and hard while graphite is soft?
How are igneous rocks formed?
How do acidic igneous rocks differ from basic igneous rocks?
Name any two characteristics of Igneous Rocks.
Name two important landforms made by Igneous Rocks.
What is sills?
How are igneous rocks classified on the basis of their chemical composition?
How are sedimentary rocks classified on the basis of their formation?
How are chemically-formed sedimentary rocks produced?
Classify the following rock: Slate
Classify the following rock: Schist
Give one word for the following.
The outer layer of the earth.
Give one word for the following.
The upper part of lithosphere, which is rich in silica and aluminium.
Fill in the blank below:
______are intrusions of igneous rock that are vertical in shape
Why are crystalline rocks called so?
| A | B | ||
| 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.
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.
