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Aluminium
Bauxite is the ore of aluminium. It is used in the making of utensils,
electricity wire, aeroplanes, chemicals, etc. Indian reserves of bauxite are
the fifth largest in the world. The main bauxite producing States in India
are Odisha, Andhra Pradesh, Telangana, Jharkhand, Madhya Pradesh,
Gujarat, Karnataka and Tamil Nadu. A small quantity is exported to the
European countries.
Coal
Coal is the main source of energy in our country. It is used for generating
electricity, for running factories, for means of transportation and also
for cooking in houses. Coal is mostly found in Jharkhand, Chhattisgarh,
Bihar, Madhya Pradesh, West Bengal, Odisha, Telangana and Tamil Nadu.
The first coal mine was opened in Raniganj in West Bengal. The most
important coalfields are in Jharia, Raniganj, Dhanbad, Bokaro, Korba,
Singrauli and Neyveli. India is the second largest producer of coal in
the world. Coal is also an important raw material for many industries.
• Critical thinking
Fill in the blanks with information from the text.
1. Metals are derived from .
2. The process of taking out minerals from the Earth is called .
3. The process of separating minerals from ore is called .
4. Bauxite is the ore of .
Petroleum
Crude petroleum is not used directly. It is refined in big oil refineries. We
get petrol, diesel, kerosene, mobile oil, gas,
coaltar and many other products from crude
petroleum. It is found only in sedimentary
rocks. In India, petroleum or mineral oil
is found in Assam, Gujarat, Maharashtra,
Andhra Pradesh and in off-shore oilfields,
such as Mumbai High. Mumbai High is
about 160 kilometres away from Mumbai Mumbai High
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