Coal and Petroleum Class 8th Science JKBOSE NCERT Notes
In this chapter you will get short revision notes for class 8th JKBOSE NCERT Science Chapter 2 Coal and Petroleum Resource Resource is anything that is useful and fulfill our basic needs.Resouces can be broadly classified as Natural resources and Man-made resources. Inexhaustible Natural Resources Natural resources which are present in nature in unlimited quantity…
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