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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
Rocks and minerals play a very important role in our lives.
Can you imagine modern life without minerals?
Differentiate between SIAL and SIMA.
How are igneous rocks formed?
How do acidic igneous rocks differ from basic igneous rocks?
Name the three stages of lithification of Sedimentary rocks.
Distinguish between the following:
Thermal and Dynamic Metamorphism.
Distinguish between the following:
Calcarious and Carbonacious rocks.
State the chief characteristics of metamorphic rocks.
How are chemically-formed sedimentary rocks produced?
Classify the following rock: Schist
Fill in the blanks
______ rocks are formed by the deposition of shells and skeletons of organism.
Give one example of an area of: Igneous rocks
Which one of the following is the most widespread most and productive category of soil.
Which Soils are formed by the weathering of metamorphic rocks?
______ into slate caused by thermal metamorphism.
Intrusive Igneous rocks are also called ______ rocks.
Sedimentary rocks are called stratified rocks.
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.
