GWD6032

GWD6-Q32:

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 greenhouse gases needs to be reduced.  Therefore, the methane now emitted from open 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.

请给我一个原因分析一下C错在哪里？我感觉也是在反对阿？

反对objection,也就是在问支持proposal的是哪个,也就是哪个在说proposal的好处

C说甲烷会被用来替代一种绿色能源,在说proposal的坏处,与答案正相反