Chapter 8, Problem 9CR

To determine

The key concept discussed under Section 8.5. Four major ways in which human activities are disrupting and degrading freshwater systems. The losses of inland wetlands in the United States in terms of the area of wetlands lost and the resulting loss of ecosystem and economic services. The way in which the building of dams and other structures on rivers can affect the river deltas and associated coastal wetlands. The way in which these effects in turn threaten human coastal communities.