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प्रश्न
Distinguish between rocks and minerals.
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उत्तर १
The rocks contain minerals in the form of ores, but minerals do not contain rocks. Sedimentary rocks contain fossil fuels like coal and petroleum, etc.; igneous rocks are rich in minerals like copper, gold, iron, etc.; and metamorphic rocks contain valuable building stones like marble, garnet, feldspar, etc. Rocks have no definite chemical composition, while minerals have a particular chemical composition.
उत्तर २
| Rocks | Minerals |
| An aggregate of one or more minerals. | Naturally occurring inorganic substances. |
| No definite chemical composition. | Have a definite chemical composition. |
| Can be layered or massive in structure. | Usually crystalline in form. |
| Examples: Granite, Sandstone. | Examples: Quartz, Mica, Feldspar. |
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संबंधित प्रश्न
Discuss the importance of rocks for the construction business.
Fill in the blank
A category of rock which is formed by the alteration of the parent rock due to heat and pressure is called: ______________.
Fill in the blank
Conglomerate is an example of _____________ rocks.
Write True or False. Rewrite the false statement correctly :
Igneous and sedimentary rocks can change into metamorphic rocks.
Classify the following rocks by selecting the correct option given below:
basalt
How are igneous rocks formed?
Name two important landforms made by Igneous Rocks.
Explain this term associated with rocks: Laccoliths and Batholiths
Differentiate between Rock and Mineral
Give one word for the following.
The lower part of ocean floor, comprising mainly of silica.
Give one word for the following.
Rocks formed by the cooling and solidification of molten rock from beneath the earth crust.
Give one word for the following.
Igneous rocks, which contain a low percentage of silica.
Fill in the blanks
The interior layer is the core, which is made up mainly of iron and nickel, and is called ______.
Fill in the blanks
______ rock contain a low percentage of silica and a high percentage of basic oxides.
Why fossils are preserved in Sedimentary and not in Igneous rocks?
Statement (1): Sedimentary rocks consist of many layers.
Statement (2): Sedimentary rocks are formed by the sediments deposited at different points of time.
Igneous rocks are found in the regions of volcanoes.
Diamond is an example of _______ rock.
How are igneous rocks formed?
Match the following.
| A. | Basalt | 1. | Anthracite |
| B. | Limestone | 2. | Extrusive igneous |
| C. | Coal | 3. | Metamorphic rock |
| D. | Gneiss | 4. | Sedimentary rock |
