Question

1. what is a primary reason why hurricane katrina caused major destruction to new orleans in 2005?

mass evacuations left the city without enough volunteers to build a seawall.
citywide pavement prevented floodwaters from soaking into the ground.
crude oil from offshore drilling platforms sparked fires across the city.
levees surrounding the city collapsed under pressure from floodwaters.

Explanation:

Hurricane Katrina caused major destruction in New Orleans in 2005. The levees surrounding the city collapsed under the pressure of floodwaters. Levees are structures built to prevent flooding. When they fail, water can inundate the area. Mass evacuations are a response to the threat, not a cause of destruction. Citywide pavement doesn't prevent flooding; it can actually exacerbate runoff. Crude - oil - related fires from offshore drilling platforms are not a primary reason for the destruction compared to levee failure.

Answer:

Levees surrounding the city collapsed under pressure from floodwaters.