Any matter or energy derived from the environment that is used by living
things including humans is called a natural resource. Natural resources include air,
water, soil, minerals, fossil fuels, plants, wild life etc. Many natural resources are used as raw materials. They play a vital role in the economic development of any region. Natural resources are classified on several basis. Based on continued availability, the resources are categorised into two types. Renewable
Resources are those which have natural regeneration after their utilisation Jharkhand is the leading producer of iron ore with 25% the country’s production.Singhbhum, Hazaribagh, Dhanbad and Ranchi districts are its major producers. Odisha with 21% production ranks second. Sundargarh,Mayurbhanj, Sambalpur and Keonjhar districts are its major producers. The magnetite production of Chhattisgarh is 18% (Rajgarh and Bilaspur are its leading districts) and the
Karnataka is 20% (Chikmangalur, Chitradurga,Shimoga and Dharwad districts are its major producers). Andhrapradesh and Tamil Nadu produce about 5% each. Kurnool, Guntur,Cuddapah and Anantapur districts in Andhra Pradesh and Salem, Namakkal, Tiruvannamalai,Tiruchirappalli, Coimbatore, Madurai and Tirunelveli districts in Tamil Nadu are notable for the production of iron ore.
Coal is an inflammable organic substance composed mainly of hydrocarbons.
Coal is available in the form ofsedimentary rocks. It is used in the generation
of thermal power. It has close association withthe industrial development of any country. Since it is a valuable one, it is called as “Black Gold”. Based on carbon content, it is classified in to the following types.b) Petroleum (or) Crude oil The word petroleum has been derived from two Latin words petro (meaning – Rock)and oleum (meaning oil). Thus petroleum is oil obtained from rocks of the earth. Therefore, it is also called mineral oil. Petroleum is an inflammable liquid that is composed of hydrocarbons which constitute 90-95% of petroleum and the remaining is chiefly organic compounds containing oxygen, nitrogen,sulphur and traces of organ metallic compounds.
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