STD - 7 CHEP -9 PRUTHVINI ANTARIK RACHANA
STD - 7 CHEP -9 PRUTHVINI ANTARIK RACHANA
STD - 7 CHEP -9 PRUTHVINI ANTARIK RACHANA
Rocks are broken into small pieces by erosion, collision or collision. These sediments are transported from one place to another by wind, air, water etc. and are deposited.
This sedimentary rock is crushed and solidifies to form a layer of rock .This type of rock is called rocky rock.
For example, sandstone is made of sand particles.
These rocks contain plants, animals and other micro-organisms that are sometimes found in these rocks. Which is also called fossil.
In some situations by a kind of rock cyclic method
Transform into each other. From one rock to another
This process of transformation into a rock is called rock cycle.
Liquid magma cools to form solid igneous rock.
These igneous rocks form small pieces from one place to another
Migrating from place to place forms rock.
This igneous and rocky rock due to temperature and pressure
Turns into converted rock.
Due to the extreme temperature and pressure, this converted rock reconstituted.
Melting becomes liquid magma. The liquid magma cools again
Turns into solid igneous rock.
STD - 7 CHEP -9 PRUTHVINI ANTARIK RACHANA
Rocks are very useful to us.
Solid rocks are used to build roads, buildings and structures. Rock is made up of various minerals.
A mineral is a naturally occurring substance that has a definite physical property and a definite chemical composition.
Minerals are very important for mankind.
Some minerals are used as fuel. Such as coal, natural gas, mineral oil and petroleum.
It is also used in various industries and in the manufacture of medicine. Such as, iron, aluminum, gold, uranium etc.
BY MAHENDRA GONDALIYA){kind=link}
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