Twenty years ago, balzania put in place regulations requiring operators of surface mines to pay for the reclamation of mined-out land. since then, reclamation technology has not improved. yet, the average reclamation cost for a surface coal mine being reclaimed today is only four dollars per ton of coal that the mine produced, less than half what it cost to reclaim surface mines in the years immediately after the regulations took effect. which of the following, if true, most to account for the drop in reclamation costs described? a. even after balzania began requiring surface mine operators to pay reclamation costs, coal mines in balzania continued to be less expensive to operate than coal mines in almost any other country. b. in the twenty years since the regulations took effect, the use of coal as a fuel has declined from the level it was at in the previous twenty years. c. mine operators have generally ceased surface mining in the mountainous areas of balzania because reclamation costs per ton of coal produced are particularly high for mines in such areas. d. even after balzania began requiring surface mine operators to pay reclamation costs, surface mines continued to produce coal at a lower total cost than underground mines. e. as compared to twenty years ago, a greater percentage of the coal mined in balzania today comes from surface mines.
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Business, 21.06.2019 14:30, hunterbetterton1
Abc computer company has a $20 million factory in silicon valley in which in builds computer components. during the current year, abc's costs are labor (wages) of $1.01.0 million; interest on debt of $0.20.2 million; and taxes of $0.20.2 million. abc sells all its output to xyz supercomputer for $2.62.6 million. using abc's components, xyz builds four supercomputers at a cost of $0.8500.850 million each, which comes from $0.6500.650 million worth of components, $0.10.1 million in labor costs, and $0.10.1 million in taxes per computer. xyz has a $30 million factory. xyz sells three of the supercomputers to other businesses for $1.81.8 million each. at year's end, it had not sold the fourth. the unsold computer is carried on xyz's books as a $0.8500.850 million increase in inventory.
Answers: 1
Business, 22.06.2019 19:30, kraigstlistt
Each row in a database is a set of unique information called a(n) table. record. object. field.
Answers: 3
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