2013年职称英语理工类B级阅读理解练习13_第3页

　　B Plants growing in water release methane.
　　C Soil microbes consume methane.
　　D Microbes in plants produce methane.
　　5. What is the beneficial point of some microbes consuming plant-produced methane?
　　A Methane becomes less poisonous.
　　B Methane is turned into a fertilizer.
　　C Less methane reaches the atmosphere.
　　D Air becomes cleaner.