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प्रश्न
State two points of distinction between rocks and minerals.
State two differences between rocks and minerals.
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उत्तर
| Rocks | Minerals |
| Rocks contain minerals. | Minerals do not contain rocks. |
| Rocks are the aggregates of minerals and other rock material. | Minerals are the compounds of pure elements with a definite chemical composition. |
| Three chief types of rocks are igneous, sedimentary, and metamorphic. | Four chief mineral groups are silicates, carbonates, sulfides, and metallic minerals. |
| Example: Granite, sandstone, slate, and quartz. | Example: Iron, silicon, magnesium, nickel, calcium, potassium, sodium. |
संबंधित प्रश्न
Why is coal hard and chunky?
Fill in the blank
Granite is an example of intrusive ________ rocks.
Write True or False. Rewrite the false statement correctly :
Basalt is an example of an intrusive igneous rock.
Classify the following rocks by selecting the correct option given below:
marble
State the types of rocks for the formation of which the following process is involved.
Formation of large crystals, coarse texture and slow cooling and compaction.
How are igneous rocks classified on the basis of their chemical composition?
How are rocks important to us?
Classify the following rock: Gneiss
Give one word for the following.
A sedimentary rock, which is composed of microscopically fine, soft and smooth particles.
Why are Sedimentary rocks called the Secondary rocks?
Give one term for the following statement:
It has a definite chemical composition with its own chemical and physical properties.
Distinguish between Intrusive and Extrusive Rocks
______ is the kind of metamorphic rock using which Taj Mahal was built.
Match the following:
| A. | Basalt | 1. | Anthracite |
| B. | Limestone | 2. | Extrusive igneous |
| C. | Coal | 3. | Metamorphic rock |
| D. | Gneiss | 4. | Sedimentary rock |
Which Soils are formed by the weathering of metamorphic rocks?
Explain about Petrology.
Explain the type of 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.
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. | Granite | 1. | Bed rock |
| B. | Soil layer | 2. | Plutonic rock |
| C. |
Barren island |
3. | Strip farming |
| D. | Soil conservation | 4. | Active Volcano |
