Advertisements
Advertisements
प्रश्न
Distinguish between rocks and minerals.
Advertisements
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. |
APPEARS IN
संबंधित प्रश्न
Why is diamond clear and hard while graphite is soft?
Explain the structure of the earth’s interior?
How are sedimentary rocks formed?
Why are the igneous rocks also called the primary rocks?
Name the three stages of lithification of Sedimentary rocks.
Name the types Sedimentary rocks based on agents of formation.
Distinguish between the following:
Plutonic and Volcanic rocks.
State the types of rocks for the formation of which the following process is involved.
Decomposition of organic matter at different stages and over different periods of time.
How are sedimentary rocks classified on the basis of their formation?
What physical agents are involved in the sedimentary rocks?
Give one word for the following.
The outer layer of the earth.
Fill in the blanks
______ is the best example of the wind deposited stratified rock.
Give one term for the following statement:
It has a definite chemical composition with its own chemical and physical properties.
Fill in the blank below:
______are intrusions of igneous rock that are vertical in shape
Which Soils are formed by the weathering of metamorphic rocks?
Rocks are classified into ______ types.
Intrusive Igneous rocks are also called ______ rocks.
Why are crystalline rocks called so?
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.
