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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
What is crust?
Give an example of intrusive igneous rock.
Classify the following rocks by selecting the correct option given below:
coal
How are rocks different from minerals?
Name any two characteristics of Igneous Rocks.
Give a detailed account of lithiflcation of sedimentary rocks.
Name the main types of rocks.
Sedimentary rocks are also called stratified rocks. Why?
What is meant by the term ‘metamorphism’?
Classify the following rock: Gypsum
Give one word for the following.
The upper part of lithosphere, which is rich in silica and aluminium.
Fill in the blanks
______ rock contain a low percentage of silica and a high percentage of basic oxides.
Give an example of a Plutonic rock.
Give reasons for the following
Extrusive rocks generally have small crystals.
Fossils are found in.
What are fossils?
Parent Rock is converted to loose Rock by ______.
______ rocks are also known as stratified rocks.
Statement (1): Sedimentary rocks consist of many layers.
Statement (2): Sedimentary rocks are formed by the sediments deposited at different points of time.
Statement (1): Sedimentary rocks consist of many layers.
Statement (2): Sedimentary rocks are formed by the sediments deposited at different points of time.
