Answer:
C. A storm surge caused water from Lake Pontchartrain to breech the cities levees.
D. Oil from flooded refineries added toxic sludge to the storm water that covered much of the city.
Step-by-step explanation:
Hurricane Katrina was one of the most destructive and the most deadly in the 2005 Atlantic hurricane season. On August 23, 2005, Hurricane Katrina formed over the Bahamas and crossed south Florida as a hurricane. of moderate category 1, causing some deaths and floods before strengthening rapidly in the Gulf of Mexico. After reaching Category 5, the storm weakened before making landfall for the second time as a category 3 hurricane on August 29 in southeastern Louisiana. Katrina devastated the Gulf Coast from Florida to Texas due to its intensification. The highest number of deaths occurred in New Orleans, which was flooded because its levee system collapsed, many of them collapsing several hours after the hurricane had continued inland. 80% of the city as well as large areas of adjoining parishes were flooded, thus staying for weeks. However, the most important material damages occurred in coastal areas, such as flooding in a matter of hours of all the coastal cities of Mississippi, the dragging of numerous ships and floating casinos to the mainland, which caused their collision with buildings, reaching the waves distances from 10 to 19 km from the coast.