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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
Rocks and minerals play a very important role in our lives.
Can you imagine modern life without minerals?
What is the difference between the inner and the outer core?
Which rocks are associated with ores of metals?
Explain this term associated with rocks: Extrusive Igneous Rocks
Name the main types of rocks.
How are rocks important to us?
What physical agents are involved in the sedimentary rocks?
Classify the following rock: Dolomite
Classify the following rock: Limestone
Fill in the blanks
______ is the best example of the wind deposited stratified rock.
How are sedimentary rocks classified?
Why are the Igneous Rocks called Primary Rocks?
Give reasons for the following
Silicates are the most common rock forming minerals.
How is sand that flows in a river formed? Collect some information about where the sand comes from.
Find the difference between:
Igneous and sedimentary rocks
______ into slate caused by thermal metamorphism.
Explain Dynamic Metamorphism.
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. | Granite | 1. | Bed rock |
| B. | Soil layer | 2. | Plutonic rock |
| C. |
Barren island |
3. | Strip farming |
| D. | Soil conservation | 4. | Active Volcano |
Statement (1): Sedimentary rocks consist of many layers.
Statement (2): Sedimentary rocks are formed by the sediments deposited at different points of time.
