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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
Name any three elements of the earth’s crust.
Name two important landforms made by Igneous Rocks.
Explain this term associated with rocks: Fossil fuels
Classify the following rock: Slate
Give one word for the following.
Stratified rock formed organically but from vegetative matter-swamps and forests.
Fill in the blank below:
______are intrusions of igneous rock that are vertical in shape
How is sand that flows in a river formed? Collect some information about where the sand comes from.
Igneous rocks are called primary rocks.
______ into slate caused by thermal 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 |
