Why is New Orleans sinking?
A) It is built on soluble rocks.
B) Levees and dykes prevent the Mississippi from supplying new sediment to balance compaction.
C) The wetlands are disappearing.
D) Hurricanes are becoming stronger.
E) Modern buildings are too heavy and cause increased compaction.

Question

Quizplus · Accepted Answer

The levees and dykes prevent the Mississippi River from depositing new sediment, which is necessary to counteract the natural compaction of the soft delta soils on which New Orleans is built.

Why Is New Orleans Sinking