Which of the following item is accepted in most residential recycling programs?
A. paperboard
B. diapers
C. plastic bags
D. foamed plastic aka Styrofoam
A. paperboard
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A(n) ________ is a sharp, knife-edged ridge that forms between two valley glaciers
A) horn B) arête C) col D) moraine
When two lamps are connected in parallel to a battery, the electrical resistance that the battery senses is
A) more than the resistance of either lamp. B) less than the resistance of either lamp. C) neither A nor B
Transportation is the source for 77 percent of this pollutant
A) carbon monoxide B) nitrogen oxides C) sulfur dioxide D) volatile organic compounds
A major advantage of hydrogen?generated electricity over other new renewable energy sources is that it ________
A) is less expensive B) already has an infrastructure in place for using hydrogen as fuel C) creates greenhouse gases but no acid deposition D) can be produced where and when electricity is needed rather than being intermittent E) converts the kinetic energy of earth processes to electrical energy