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प्रश्न
Distinguish between Intrusive and Extrusive Rocks
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उत्तर
| Intrusive Rocks | Extrusive Rocks |
| Intrustive rocks are formed beneath the surface of the Earth. | Extrusive rocks are formed on the surface of the Earth. |
| These rocks have large size crystals due to slow cooling. | Crystals are not formed due to rapid cooling of lava. |
| These are also known as plutonic rocks. | These are also known as volcanic rocks. |
| Granite is an example of these rocks. | Basalt is an example of these rocks. |
संबंधित प्रश्न
Fill in the blank
Conglomerate is an example of _____________ rocks.
Write True or False. Rewrite the false statement correctly :
Sedimentary rocks are formed by the cooling and solidification of molten rock called magma
What is crust?
Give an example of intrusive igneous rock.
How are sedimentary rocks formed?
State two points of distinction between rocks and minerals.
Give one difference between Extrusive igneous and Intrusive igneous rocks.
What are known as metamorphic rocks?
Differentiate between Rock and Mineral
Classify the following rock: Granite
Give one word for the following.
The lower part of ocean floor, comprising mainly of silica.
Fill in the blanks
______ rocks are formed by the deposition of shells and skeletons of organism.
Fill in the blanks
______ rocks cover wide area in Peninsular India and Columbia, the Snake Plateau of the U.S.A.
Statement (1): Sedimentary rocks consist of many layers.
Statement (2): Sedimentary rocks are formed by the sediments deposited at different points of time.
Classify and explain the rocks.
How are igneous rocks formed?
______ refer to rock in Greek.
What is lava?
Match the following:
| A. | Basalt | 1. | Anthracite |
| B. | Limestone | 2. | Extrusive igneous |
| C. | Coal | 3. | Metamorphic rock |
| D. | Gneiss | 4. | Sedimentary rock |
