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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
Classify the following rocks by selecting the correct option given below:
shale
How are igneous rocks formed?
Which rocks are associated with fossil fuels?
How are chemically-formed sedimentary rocks produced?
Distinguish between Regional and Contact metamorphism.
Classify the following rock: Gneiss
Classify the following rock: Graphite
Why are the Igneous Rocks called Primary Rocks?
How is sand that flows in a river formed? Collect some information about where the sand comes from.
Which of the following monuments are built-in igneous rock?
- The Taj Mahal
- Fort Raigad
- The Red Fort
- Ellora Sculpture
Find the difference between:
Igneous and sedimentary rocks
Choose the incorrect statement from the following.
Diamond is an example of _______ rock.
Match the following:
| (a) | Igneous | (i) | Magma |
| (b) | Sedimentary | (ii) | Transformation |
| (c) | Metamorphic | (iii) | Gypsum |
| (d) | Molten material | (iv) | Basalt |
| (e) | Rock Cycle | (v) | Marble |
Explain about Petrology.
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 |
Match the following.
| A. | Basalt | 1. | Anthracite |
| B. | Limestone | 2. | Extrusive igneous |
| C. | Coal | 3. | Metamorphic rock |
| D. | Gneiss | 4. | Sedimentary rock |
Match the following:
| A. | Basalt | 1. | Anthracite |
| B. | Limestone | 2. | Extrusive igneous |
| C. | Coal | 3. | Metamorphic rock |
| D. | Gneiss | 4. | Sedimentary rock |
Statement (1): Sedimentary rocks consist of many layers.
Statement (2): Sedimentary rocks are formed by the sediments deposited at different points of time.
