Earth’s internal composition and Landforms — Social Science STD 7 — Question
Gujarat BoardEnglish MediumSTD 7Social ScienceEarth’s internal composition and Landforms4 Marks
Question
Explain the utility of the rocks.
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Answer
The crust of the earth is made up of different rocks.
The solid rocks are used for making of roads, houses and buildings.
There are many minerals in the rocks. Minerals have been useful in the development of human civilization.
Today, most of the industries are run by machines.
The machines are manufactured from mineral like iron. Coal and mineral oil are mostly used as the energy resources of the machines. Minerals are necessary for medicinal uses also.
Petrochemical industries are dependent only on minerals and natural gas.
Thus, recent industrial development is almost dependent on minerals. So the rocks are useful as the storehouse of minerals.
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