The belt of jute industry in Bihar is located in

North-West Plain of Bihar
North-East Plain of Bihar
Middle-South Plain of Bihar
Damodar Valley region

The correct answer is: C. Middle-South Plain of Bihar

The jute industry in Bihar is located in the Middle-South Plain of Bihar. This region is well-suited for jute cultivation due to its fertile soil, abundant water supply, and warm climate. The jute industry is a major source of employment and income for the people of this region.

The North-West Plain of Bihar is a dry and arid region that is not suitable for jute cultivation. The North-East Plain of Bihar is a hilly region that is also not suitable for jute cultivation. The Damodar Valley region is a coal-rich region that is not suitable for jute cultivation.

Jute is a long, soft fiber that is obtained from the stem of the jute plant. Jute is used to make a variety of products, including bags, sacks, carpets, and textiles. Jute is a biodegradable and sustainable fiber that is an important part of the global economy.