Hint | Answer | % Correct |
---|---|---|
1 | 1. location of New Orleans below sea level and between lake pontchartrain and the Mississippi River | 100%
|
4 | 2. Wetlands drained/altered | 0%
|
10 | 3. Artificial levees built around river/swamps to protect N.O. | 0%
|
7 | Barrier islands provide a thick line of protection for the mainland against storms by absorbing energy from the strongest waves (eg, Chandeleur islands approx 100km east of New Orleans) | 0%
|
8 | Coastal wetlands absorb the impact of a storm surge or river flood by providing a break over which water loses its destructive energy | 0%
|
17 | Examples of levees that broke were the: Industrial Canal, 17th Street Canal, London Ave Canal | 0%
|
5 | Expansive wetlands help to protect inland areas from Hurricane winds and storm surges, but these were destroyed due to human activity. | 0%
|
6 | In the past the coastline was further from New Orleans and the water logged areas absorbed the impact of storm surges. Removal of wetlands brings cyclone effects closer to city. | 0%
|
9 | Louisiana loses an estimated 16,000 – 22,000 acres of wetlands a year. This loss can be attributed to both human and natural causes. | 0%
|
12 | Natural levees were strengthened along the Mississippi River distributary below the city, and roads and settlements were built on them. | 0%
|
3 | New Orleans is located on the Mississippi Delta between a distributary of the river and Lake Pontchartrain making it vulnerable to storm surge | 0%
|
2 | New Orleans is the gulf coasts city most vulnerable to hurricanes, because of its coastal location (30'N, 90'W)Southeastern coast of USA which borders the warm Gulf of Mexico | 0%
|
14 | The local government refused to spend much needed money on strengthening the levees. The levees were built in the 1990s and had received no maintenance since. | 0%
|
16 | They were only built to withstand no more than category 3 hurricanes, Katrina was a category 5 hurricane when it hit New Orleans | 0%
|
13 | This meant that during periods of heavy rainfall, the river could no longer overflow and spread silt on the delta wetlands. | 0%
|
15 | This resulted in 80% of the city of New Orleans being under water (8m) when Hurricane Katrina hit | 0%
|
11 | When peat swamps are drained, they shrink, which means that N.O. ended up well below sea level. It relies on flood walls, pumps and levees to keep it dry. | 0%
|
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