Which one of the following states of India experiences floods frequently?

All listed states, Bihar, West Bengal, and Assam, experience floods frequently. So the answer is More than one of the above.

Key Points 

While each state faces its specific conditions and frequency of flooding, they all share a vulnerability due to:

• Location: They are in the fertile plains of Eastern India, traversed by major rivers like the Brahmaputra, Ganga, and their tributaries. These rivers tend to overflow their banks during the monsoon season.
• Topography: The flat nature of the land allows water to stagnate and spread easily, causing more widespread flooding.
• Deforestation: Loss of tree cover leads to increased soil erosion, which contributes to sedimentation in rivers and reduces their carrying capacity. This further exacerbates flooding.
• Human interventions: Construction of embankments and dams can alter natural drainage patterns and contribute to backwater flooding.
• Therefore, it's important to acknowledge that all these three states grapple with frequent floods, necessitating comprehensive flood management strategies and disaster preparedness measures.