Describe what environmentalists mean when they say that the Resource Conservation and Recovery Act deals with waste streams "from cradle to grave."
What will be an ideal response?
The Resource Conservation and Recovery Act requires large generators of hazardous waste to obtain permits and track the path of hazardous materials, to prevent illegal dumping and encourage the use of reputable waste carriers and disposal facilities. As hazardous waste is generated, transported, and disposed of, the producer, carrier, and disposal facility must each report to the EPA the type and amount of material generated. They must document the location, origin, and destination of the hazardous material and document the way it is handled.
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How does the National Pollution Discharge Elimination System program address point-source pollution by nutrients?
What will be an ideal response?
More than any other factor in nature, the availability of ____________ water, or water suitable for drinking,
determines the number of people who can inhabit any geographic area. Fill in the blank(s) with the appropriate word(s).
During the Pleistocene ice age, ____
a. all of Earth's fresh water was frozen b. glaciers occupied the Amazon River basin c. sea level was lower than it is today d. the Antarctic ice sheet was smaller than it is today
Assume that the solar collector system of Problem 7.2 has an average efficiency of 60% during the month of January and 68% during the month of June. On average, how many gallons of supply water at 70°F could be heated to 120°F by the system each day during each month?
What will be an ideal response?