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प्रश्न
Fill in the blanks
Extrusive rocks are also known as ______ rocks.
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उत्तर
Extrusive rocks are also known as volcanic rocks.
संबंधित प्रश्न
Fill in the blank
Conglomerate is an example of _____________ rocks.
Write True or False. Rewrite the false statement correctly :
Minerals are organic substances.
How are igneous rocks formed?
What are metamorphic rocks?
Distinguish between the following pair:
Degradation and aggradation
Give two examples of sedimentary rocks.
Briefly define Mechanical Metamorphism.
Distinguish between rocks and minerals.
Describe how igneous rocks are formed.
Give one word for the following.
Igneous rocks, which contain a high percentage of silica.
Fill in the blanks
______ is formed, when the angular and coarse grains of some durable minerals are cemented together.
Fill in the blanks
______ is the best example of the wind deposited stratified rock.
Give one term for the following statement:
Formed when mud layers compacted under great pressure composing 80% of this rock.
Give one term for the following statement:
Formed by evaporation in saline lakes.
Match the following:
| A. | Basalt | 1. | Anthracite |
| B. | Limestone | 2. | Extrusive igneous |
| C. | Coal | 3. | Metamorphic rock |
| D. | Gneiss | 4. | Sedimentary rock |
What are fossils?
Which Soils are formed by the weathering of metamorphic rocks?
Explain the different types of sedimentary rocks.
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:
| 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 |
