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प्रश्न
Differentiate between SIAL and SIMA.
अंतर स्पष्ट करें
उत्तर
SIAL
- It is the upper layer of the earth.
- it is made up of silica and aluminum.
SIMA
- It is the lower layer of the earth.
- It is made up of magnesium and silica.
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Rock and it's Types
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संबंधित प्रश्न
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Give reasons for the following
Silicates are the most common rock forming minerals.
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Match the following.
| A. | Basalt | 1. | Anthracite |
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| 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.
