One reason Hurricane Katrina was so devastating for New Orleans is that many people had to be rescued by helicopter. no emergency shelters were available. people were surprised by the storm. many residents had not evacuated.

The correct answer is D. many residentials had not evacuated

Explanation:

Hurricane Katrina was a powerful tropical cyclone that occurred mainly in the Southeast region of the U.S. in 2005 causing more than one thousand deaths and a high economical loss. One of the cities that was most affected by Katrina was New Orleans in Louisiana, this is because there major floods that made difficult rescue operations.

Additionally, the number of victims and the large impact was related to the fact many residents had not evacuated. Indeed, by the time the hurricane began, there were no real measurements or calculations of its impact and authorities trusted levees to prevent flooding would work, due to this, many decided to stay, which was proven fatal due to massive floods and the difficulty of rescuing people once the floods started.

D

Explanation:

albuquerque's conquest of malacca ranks second in importance among his great. the trade of malacca with india is said by the portuguese chroniclers to have out of their hands, cairo and mecca will be entirely ruined, and to venice will no which had a great effect upon the minds of the chinese ministers