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प्रश्न
Which rocks are associated with ores of metals?
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उत्तर
Igneous rocks are associated with ores of metals due to their origin by cooling magma, resulting in crystalline rocks rich in mineral content.
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संबंधित प्रश्न
Write True or False. Rewrite the false statement correctly :
Igneous and sedimentary rocks can change into metamorphic rocks.
What is the difference between the inner and the outer core?
Name the types Sedimentary rocks based on agents of formation.
Distinguish between the following:
Plutonic and Volcanic rocks.
Classify the igneous rocks on the basis of their place of origin.
State the chief characteristics of metamorphic rocks.
How are rocks important to us?
Classify the following rock: Schist
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.
The upper part of lithosphere, which is rich in silica and aluminium.
Give one word for the following.
Igneous rocks, which contain a low percentage of silica.
State the properties of metamorphic rocks.
Give reasons for the following
Rocks are of great economic significance.
How is sand that flows in a river formed? Collect some information about where the sand comes from.
The word ‘Igneous’ is derived from the ______ word.
Explain Dynamic Metamorphism.
Mention some uses of rocks.
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:
| Group 'A' | Group 'B' | ||
| A. | Granite | 1. | Bedrock |
| B. | Soil layer | 2. | Plutonic rock |
| C. | Barren island | 3. | Strip farming |
| D. | Soil conservation | 4. | Active Volcano |
Statement (1): Sedimentary rocks consist of many layers.
Statement (2): Sedimentary rocks are formed by the sediments deposited at different points of time.
