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प्रश्न
How are igneous rocks formed?
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उत्तर
Igneous rocks are the primary rocks formed by the solidification of the molten magma.
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संबंधित प्रश्न
What is Geology?
Name the rocks which are most widespread on the earth.
Explain this term associated with rocks: Fossil fuels
State the types of rocks for the formation of which the following process is involved.
Accumulation takes place over long periods of time in seas, lakes and streams.
In what type of rocks do you find fossils and why?
Give one word for the following.
Rocks formed by the cooling and solidification of molten rock from beneath the earth crust.
Fill in the blanks
______ is formed, when the angular and coarse grains of some durable minerals are cemented together.
Statement (1): Sedimentary rocks consist of many layers.
Statement (2): Sedimentary rocks are formed by the sediments deposited at different points of time.
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 |
