Statistics for FQ1: coastal location

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General Stats

  • This quiz has been taken 1 time
  • The average score is 1 of 17

Answer Stats

HintAnswer% Correct
11. location of New Orleans below sea level and between lake pontchartrain and the Mississippi River
100%
42. Wetlands drained/altered
0%
103. Artificial levees built around river/swamps to protect N.O.
0%
7Barrier 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%
8Coastal wetlands absorb the impact of a storm surge or river flood by providing a break over which water loses its destructive energy
0%
17Examples of levees that broke were the: Industrial Canal, 17th Street Canal,
London Ave Canal
0%
5Expansive wetlands help to protect inland areas from Hurricane winds and storm surges, but these were destroyed due to human activity.
0%
6In 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%
9Louisiana loses an estimated 16,000 – 22,000 acres of wetlands a year. This loss can be attributed to both human and natural causes.
0%
12Natural levees were strengthened along the Mississippi River distributary below the city, and roads and settlements were built on them.
0%
3New Orleans is located on the Mississippi Delta between a distributary of the river and Lake Pontchartrain making it vulnerable to storm surge
0%
2New 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%
14The 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%
16They were only built to withstand no more than category 3 hurricanes, Katrina was a category 5 hurricane when it hit New Orleans
0%
13This meant that during periods of heavy rainfall, the river could no longer overflow and spread silt on the delta wetlands.
0%
15This resulted in 80% of the city of New Orleans being under water (8m) when
Hurricane Katrina hit
0%
11When 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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