A flood is best defined as which of the following?

A flood is best defined as which of the following?

• A. A temporary overflow of a river onto adjacent lands not normally covered by water.
• B. A long-term rise in sea level.
• C. A storm surge along a coastline.
• D. A drought.

Answer: (A)

Flooding happens when water spills over the banks of a river and covers land that isn’t normally underwater, but only for a period of time. This captures the essential idea: water temporarily overflows onto normally dry ground. The other options describe different hydrological situations: a long-term rise in sea level is a gradual change to water levels, a storm surge is a sudden coastal flood during storms, and a drought is a long period with too little water. So the best choice is the one that emphasizes temporary overland water coverage.

Flooding happens when water spills over the banks of a river and covers land that isn’t normally underwater, but only for a period of time. This captures the essential idea: water temporarily overflows onto normally dry ground. The other options describe different hydrological situations: a long-term rise in sea level is a gradual change to water levels, a storm surge is a sudden coastal flood during storms, and a drought is a long period with too little water. So the best choice is the one that emphasizes temporary overland water coverage.