A sentence/a part of the sentence is underlined. Four alternatives are given to the underlined part which will improve the sentence. Choose the correct alternative and click the button corresponding to it. In case no improvement is needed, click the button corresponding to "No improvement". I purposely did that with a view to offend her.
India's copper ore reserves have been estimated at 400 million tonnes, with a metal content of 5 million tones. The principal copper belt of India lies in Singhbhum and Hazaribagh in Jharkhand. The mining centres are located at Mosabani, Ghatsila, Thobani and Badia of Singbhbum, Hazaribagh of Bihar, the Khetri and Dariba areas of Rajasthan, and Agnigundala of Andhra Pradesh. Total production is 2.6 million tones.