Are floods considered to be only natural disasters?

Floods can result from both natural and man-made causes, making the assertion in the correct choice valid. Natural disasters, such as heavy rainfall, snowmelt, or hurricanes, can lead to flooding when water exceeds the capacity of rivers, lakes, or drainage systems. On the other hand, man-made factors, including urban development, poor land management, and the failure of dams or levees, can also cause or exacerbate flooding events. This dual nature of floods highlights their complexity and the various factors that contribute to their occurrence, which means they cannot be exclusively categorized as natural disasters.

The other options misrepresent the nature of floods. Some imply that floods are only natural or preventable, downplaying the significant impact of human activity on flood risk and management.