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प्रश्न
Rocks and minerals play a very important role in our lives.
Can you imagine modern life without minerals?
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उत्तर
Life without rocks and minerals would be disastrous –
Rocks are of great value to us. Some of the main benefits of- rocks are listed below :
- Soil is formed when rocks gradually break up and disintegrated by mechanical and chemical processes.
- Rocks contain a great variety of minerals that yield metals such as iron, manganese, and copper, which are important raw materials for
mineral-based manufacturing industries.
We shall face many problems if rocks and minerals get diminished.
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संबंधित प्रश्न
What is crust?
Classify the following rocks by selecting the correct option given below:
sandstone
Distinguish between the following:
Sills and Dykes.
State the types of rocks for the formation of which the following process is involved.
Solidification of magma on the surface of the earth.
______ is the kind of metamorphic rock using which Taj Mahal was built.
Match the following:
| A. | Basalt | 1. | Anthracite |
| B. | Limestone | 2. | Extrusive igneous |
| C. | Coal | 3. | Metamorphic rock |
| D. | Gneiss | 4. | Sedimentary rock |
The word ‘Igneous’ is derived from the ______ word.
The oldest sedimentary rocks of the world have been identified in ______.
What are the characteristics of Sedimentary rocks?
Match the following:
| A. | Basalt | 1. | Anthracite |
| B. | Limestone | 2. | Extrusive igneous |
| C. | Coal | 3. | Metamorphic rock |
| D. | Gneiss | 4. | Sedimentary rock |
