On the basis of climate characteristic, Bihar is divided into how many agro-climate zones?

The correct answer is: A. 3

Bihar is divided into three agro-climate zones:

• Zone I: This zone is characterized by a hot and humid climate with an average annual rainfall of 1,000-1,200 mm. The main crops grown in this zone are rice, wheat, maize, and pulses.
• Zone II: This zone is characterized by a sub-tropical climate with an average annual rainfall of 800-1,000 mm. The main crops grown in this zone are rice, wheat, maize, and sugarcane.
• Zone III: This zone is characterized by a dry climate with an average annual rainfall of 600-800 mm. The main crops grown in this zone are rice, wheat, maize, and millets.

The following are the brief descriptions of each option:

• Option A: Bihar is divided into three agro-climate zones. This is the correct answer.
• Option B: Bihar is divided into four agro-climate zones. This is incorrect.
• Option C: Bihar is divided into one agro-climate zone. This is incorrect.
• Option D: Bihar is divided into five agro-climate zones. This is incorrect.