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प्रश्न
Give reasons for the following
Silicates are the most common rock forming minerals.
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उत्तर
Silicates are the most common rock forming minerals because they are most common minerals in the Earth’s crust.
संबंधित प्रश्न
Why is diamond clear and hard while graphite is soft?
With the help of your teacher, collect different types of rocks such as granite, sandstone, limestone, marble, slate, graphite, etc. and prepare a chart containing information about their colour, hardness, texture, and permeability.
State two points of distinction between rocks and minerals.
Name any three elements of the earth’s crust.
What are the causes of metamorphism?
What physical agents are involved in the sedimentary rocks?
Give some examples of metamorphic rocks formed from sedimentary and igneous rocks.
Classify the following rock: Slate
Give one word for the following.
The upper part of lithosphere, which is rich in silica and aluminium.
Fill in the blanks
The interior layer is the core, which is made up mainly of iron and nickel, and is called ______.
Fill in the blanks
Extrusive rocks are also known as ______ rocks.
Give one term for the following statement:
Igneous rocks of deep seated origin.
Why are the Igneous Rocks called Primary Rocks?
Chemical sedimentary rocks are found in the beds of reservoirs.
Kola sample title is located in ______.
Minerals exist in nature ¡n the form of ______ or ______.
The world Igneous is derived from the Latin word ______ meaning ______.
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.
Match the following:
| A. | Basalt | 1. | Anthracite |
| B. | Limestone | 2. | Extrusive igneous |
| C. | Coal | 3. | Metamorphic rock |
| D. | Gneiss | 4. | Sedimentary rock |
