Explain how streams can cleanse themselves ofoxygen-demanding wastes and how these cleansing processes can be overwhelmed. What is wastewater? Describe the state of stream pollution inmore-developed and less-developed countries.Give two reasons why lakes and reservoirs cannotcleanse themselves of pollutants very well. Define and distinguish between eutrophication and cultural eutrophication. List three ways to prevent orreduce cultural eutrophication. What are the majorsources of groundwater contamination in the UnitedStates? Explain why groundwater cannot cleanseitself very well. List three ways to prevent or cleanup groundwater contamination. List some ways topurify drinking water. Describe the purification ofdrinking water in more-developed and less-developedcountries. Describe environmental problems causedby the widespread use of bottled water. How are lawsused to protect drinking water in the United States?List three ways to strengthen the U.S. Safe DrinkingWater Act. Describe how lead threatens drinkingwater in the United States.
Explain how streams can cleanse themselves of
oxygen-demanding wastes and how these cleansing processes can be overwhelmed. What is wastewater? Describe the state of stream pollution in
more-developed and less-developed countries.
Give two reasons why lakes and reservoirs cannot
cleanse themselves of pollutants very well. Define and distinguish between eutrophication and cultural eutrophication. List three ways to prevent or
reduce cultural eutrophication. What are the major
sources of groundwater contamination in the United
States? Explain why groundwater cannot cleanse
itself very well. List three ways to prevent or clean
up groundwater contamination. List some ways to
purify drinking water. Describe the purification of
drinking water in more-developed and less-developed
countries. Describe environmental problems caused
by the widespread use of bottled water. How are laws
used to protect drinking water in the United States?
List three ways to strengthen the U.S. Safe Drinking
Water Act. Describe how lead threatens drinking
water in the United States.
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