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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
Fill in the blank
Sedimentary rocks such as limestone change into ___________.
Classify the following rocks by selecting the correct option given below:
sandstone
Describe how igneous rocks are formed.
How are chemically-formed sedimentary rocks formed? Give examples.
Give one word for the following.
The core of the earth occupied by rock in iron and nickel.
Fill in the blanks
The interior layer is the core, which is made up mainly of iron and nickel, and is called ______.
Give one term for the following statement:
Formed when mud layers compacted under great pressure composing 80% of this rock.
Rocks are classified into ______ types.
Parent Rock is converted to loose Rock by ______.
______ are chemical substances which exist in nature.
