Answer the questions. 1 Why are bridges unsafe after a flood? 2 How do levees protect cities from flooding? 3 How did Hurricane Katrina cause a flood?

5. Answer the questions.

1. Why are bridges unsafe after a flood?

   Bridges are unsafe after a flood because the flood water can damage their foundations and structures.

2. How do levees protect cities from flooding?

   Levees protect cities from flooding by acting as barriers that prevent floodwaters from inundating urban areas.

3. How did Hurricane Katrina cause a flood?

   Hurricane Katrina caused a flood by overwhelming the levee system in New Orleans, leading to widespread inundation.

Ответ: Bridges are unsafe after a flood because the flood water can damage their foundations and structures.; Levees protect cities from flooding by acting as barriers that prevent floodwaters from inundating urban areas.; Hurricane Katrina caused a flood by overwhelming the levee system in New Orleans, leading to widespread inundation.