Sophia Milestone Environmental Science Unit 3

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Select the true statement about efforts to address water pollution in the United States.  The Clean Water Act of 1972 stated that all U.S. waterways would be clean by 1983.  The Refuse Act of... 1899 was designed to protect waterways from non-point source pollution.  Media coverage of water pollution issues in the 1960s led to public concern and political action.  Individual states address non-point pollution sources by fining citizens for violations. CONCEPT Efforts to Address Water Pollution in the United States 2 Choose the statement that is NOT true about water availability on Earth.  Industry uses nearly as much water as agriculture does.  20% of the world’s population lives in an area where water is scarce.  Many major aquifers have a notable reduction in available water.  More than a billion people do not have ready access to clean water. CONCEPT Water Availability 3 Which of the following is an example of an organic agricultural practice?  Eliza adds earthworms to her garden to stimulate the formation of topsoil.  Sadie and her family practice no-till farming.  Rick alternates between grazing his livestock in several different pastures and giving them processed feed.  Bill uses only natural fertilizers and pesticides. CONCEPT Agriculture Impacts 4 Which of the examples below describes an effort to address urban sprawl through brownfield repair?  The site of a bankrupt cement factory is cleared and all hazardous substances disposed of.  Walking trails are built to connect neighborhoods with popular restaurants and shopping centers.  Private owners board up an abandoned building.  A flower garden is maintained in a empty lot downtown. CONCEPT [Show More]

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