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Class 10 Class 12
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Which one of the following mineral is known as brown diamond?

 

  • Iron

  • Lignite

     

  • Manganese

  • Mica


B.

Lignite

 

9740 Views

Give an account of the distribution of mica in India.


India has monopoly in production of mica producing about 60% of the world's total production. About 95% of India's mica is found in just three states of Jharkhand, Andhra Pradesh and Rajasthan.

(i) Jharkhand : Jharkhand has the richest belt and accounts for 60% of India’s production in terms of value. Mica is found in a belt extending about 150 km in length and 32 km in width from Gaya to Hazaribagh and Kodarma. Kodarma is a well-known place for mica production in Jharkhand.

(ii) Andhra Pradesh : This is second largest producer and accounts for 25% of India's mica. The areas are in Nellore district. It is 97 km. long and 30 km. wide.

(iii) Rajasthan : The mica belt extends from Jaipur to Udaipur. This is 322 km. long with an average width of 96 cm. The major mica producers are Bhilwara, Jaipur, Tonk, Sikar, Dungarpur and Ajmer.

2412 Views

Which one of the following is nonrenewable source of energy?

 

  • Hydel

  • Solar

     

  • Thermal

  • Wind power


C.

Thermal

3343 Views

In which one of the following states are the major oil fields located?

  • Assam

  • Bihar

     

  • Rajasthan

  • Tamil Nadu


A.

Assam

5884 Views

At which one of the following places was the first atomic power station started?

 

  • Kalpakkam

  • Narora

     

  • Rana Pratap Sagar

     

  • Tarapur


D.

Tarapur

4705 Views