Barron 0132

chunjuwu

Proposal: Carbon dioxide and methane in the
atmosphere block the escape of heat into space. So emission of these
“greenhouse” gases contributes to global warming. In order to reduce
global warming, emission of reenhouse gases needs to be reduced.
Therefore, the methane now emitted from pen landfills should instead be
burned to produce electricity.




Objection: The burning of methane generates carbon dioxide that is released into the atmosphere.





Which of the following, if true, most adequately counters the objection made to the proposal?





(A) Every time a human being or other mammal exhales, there is some carbon dioxide released into the air.





(B) The conversion of methane to electricity would occur at a considerable distance from the landfills.





(C) The methane that is used to generate electricity would generally be
used as a substitute for a fuel that does not produce any greenhouse
gases when burned.





(D) Methane in the atmosphere is more effective in blocking the escape of heat from the Earth than is carbon dioxide.




(E) The amount of methane emitted from the landfills could be
reduced if the materials whose decomposition produces methane were not
discarded, but recycled.



可不可以分析一下，C 和 D 呀

rabbit

关键词是 methane，carbon dioxide

C是超出范围

D满足要求