One solution to the problem of our overflowing landfills is to burn plastic objects instead of burying them. What would be some of the advantages and disadvantages of this practice?
A. disadvantage: loss of vital petroleum-based resource; advantage: generation of electricity
B. disadvantage: discourages recycling; advantage: provides new jobs
C. disadvantage: toxic air pollutants; advantage: reduced landfill volume
D. all of the above
Answer: D
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How can topography contribute to pollution in a city or region?
What will be an ideal response?
Ore deposits of dense minerals concentrated by stream action are
A. placers. B. hydrothermal. C. metamorphic. D. evaporates.
Which of the following is not an example of an action an individual can take to help mitigate against climate change?
A) placing dishes in dishwater without pre-washing B) improving regional land use practices C) eating locally sourced foods D) using energy efficient light bulbs E) driving a vehicle with high fuel economy
Which of the following sets of reagents is required for the conversion of a-ketoglutarate to succinate in steps 4 and 5 of the citric acid cycle?
A) NAD+, GDP and inorganic phosphate B) NAD+, GDP, inorganic phosphate and water C) NAD+, GTP and inorganic phosphate D) NAD+, GDP, inorganic phosphate and water