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Unformatted text preview: D: maximize resource use 8: Which of the following is true about efficiency improvements to conserve natural resources? D: U.S. inefficiency is due to its historically abundant resources. 9: Which of the following is most likely true about the economies of recycling? C: Closing the loop on recycling will not occur until it is economically feasible. 10: The price of gasoline is $2.50/gallon. Your car gets 20 miles/gallon. You drive about 20,000 miles/year. If you trade in your car for one that gets 30 miles/gallon, how much would you save/year? C: About $834/year 11: If recycling aluminum cans paid $20/ton and an aluminum can weighs one ounce, how many aluminum cans would you have to save to make $100? D: 160,000 cans...
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- Spring '09
- Geology, $20, $100, $2.50, $834, 20 miles