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NCERT Class 7 Geography: Chapter 1, Question Answer the following questions Q.1(vi)
What are the uses of rocks?
Uses of rocks:
(i) Hard rocks are used in construction of buildings and roads.
(ii) Some rocks are shiny and precious therefore used for making jewellery.
(iii) Rocks are made up of different minerals and are very important to humankind.
(iv) Some are used as fuels. For example, coal, natural gas and petroleum.
(v) Soft rocks are used for making talcum powder, chalks etc.
https://www.indcareer.com/schools/ncert-solutions-for-7th-class-geography-chapter-2-inside-our-earth/