Four of the following are major human activities that disrupt and degrade freshwater systems; one is not. Choose the one that is not.
(Points : 2)
elimination of coral reefs
dams and canals that fragment habitats
flood control levees and dikes that disconnect rivers from floodplains
cities and farms that add excess nutrients and pollution
draining inland wetlands to grow crops

Question

Four of the following are major human activities that disrupt and degrade freshwater systems; one is not. Choose the one that is not.
(Points : 2)
       elimination of coral reefs
       dams and canals that fragment habitats
       flood control levees and dikes that disconnect rivers from floodplains
       cities and farms that add excess nutrients and pollution
       draining inland wetlands to grow crops

anonymous · Answer

@mathmath333

mathmath333 · Answer

well m unable to answer 
u should post it in geography section