1. Environmental economics
A. is concerned mainly with the residual flow from economic activity back to nature
B. focuses on the flow of resources from nature to economic activity
C. recognizes that the flow of residuals back to nature is preventable
D. focuses on fossils and organism markets
2. Recycling efforts such as those exemplified by BMW's Design for Disassembly (DFD) program
A. permanently diminish the flow of residuals back to nature
B. are not represented in the materials balance model
C. represent short-term conversion of residuals into recycled materials or goods
D. reduce the amount of wastes returned to nature in the long-run
1.A
2.D
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