In the production of crude copper in the country, Bihar ranks –

The correct answer is: D. first

Bihar is the largest producer of crude copper in India. It accounts for about 40% of the country’s total production. The other major producers of crude copper in India are Rajasthan, Andhra Pradesh, and Madhya Pradesh.

The copper industry in Bihar is mainly concentrated in the districts of Jamui, Munger, and Lakhisarai. These districts are home to a number of large copper mines and smelters. The copper industry is a major source of employment in these districts.

The copper industry in Bihar has been facing a number of challenges in recent years. These challenges include the rising cost of production, the shortage of skilled labor, and the environmental impact of mining. However, the industry is still a major contributor to the state’s economy.

Here is a brief explanation of each option:

• Option A: Third. This option is incorrect because Bihar is the largest producer of crude copper in India.
• Option B: Fourth. This option is incorrect because Bihar is the largest producer of crude copper in India.
• Option C: Second. This option is incorrect because Bihar is the largest producer of crude copper in India.
• Option D: First. This option is correct because Bihar is the largest producer of crude copper in India.