Flood-prone lands have been inhabited throughout history. Discuss 3 ways in which humans can lessen the frequency of river floods. In the western United States irrigation is very important for agriculture. Groundwater flow is important for both the exploitation of groundwater resources and for groundwater contamination and protection. Discuss the factors that affect groundwater flow.
Surface waters contain abundant life.
Discuss the factors other than precipitation that affect surface runoff. Humans pollution has affected the composition of rain water. What is the main source of each of the following constituents of natural rain water. Cl- Compare and contrast a river flood that occurs in a small upstream drainage basin with floods that occur in larger downstream drainage basins. How does the weathering of these minerals affect the chemistry of surface waters.