Plant Gas In its experiments,Kepplers team used sealed chambers that contained the same concentration of oxygen that Earths atmosphere has.They measured the amounts of methane that were released by both living plants;and dried plant material,such as fallen leaves. Living plants growing at their normal temperatures released as much as 370 nanograms of methane per gram of plant tissue per hour.Methane emissions tripled when living and dead plant was exposed to sunlight. The new finding is an interesting observation, says Jennifer Y.King,a biogeochemist at the University of Minnesota in St.Paul3.Because some types of soil microbes consume methane,they may prevent plant-produced methane from reaching the atmosphere.Field tests will be needed to assess the plants influence,she notes. the Max Planck Institute for Nuclear Physics in Heidelberg,Germany:马克思普朗克核物理研究所,位于德国海德堡。海德堡系德国西南部城市,在巴登一符腾堡州的内卡河畔。海德堡大学是德国历史最悠久的大学。 St.Paul:圣保罗,美国明尼苏达州首府。 What was scientists understanding of methane? B It was not a greenhouse gas. D It traps more heat than any other greenhouse gas. A a oxygen-free environment. C a carbon dioxide-free environment. Which statement is true of the methane emissions of plants in the experiment? B I.iving plants release less methane than dried plants at the same temperature. D The higher the temperature,the greater the amount of methane emissions. A Plants growing in soil release methane. C Soil microbes consume methane. What is the beneficial point of some microbes consuming plant-produced methane? B Methane is turned into a fertilizer. D Air becomes cleaner.
26个英文字母蕴含的人生哲理
精选英语美文阅读:饶孟侃《呼唤》
英语晨读:潘多拉
精选英语美文阅读:How selfless real love is 无私的爱
英语美文欣赏:A beautiful song
双语阅读:回家的感觉真好
精选英语美文阅读:你见或者不见我(中英对照)
英语美文:A Psalm of Life 人生礼颂
英语美文:越长大越孤独(双语)
精选英语美文阅读:A Friend's Prayer 朋友的祈祷
英语美文:Keep on Singing
精选英语美文阅读:哪有一株忘忧草? (双语)
浪漫英文情书精选:Need You With Me需要你爱我
浪漫英文情书精选:My Everything我的一切
精美散文:让我们撩起生命的波纹
英语美文:红色 Red (双语)
人生哲理:年轻无悔 别停下追寻梦想的脚步
伤感美文:人生若只如初见
浪漫英文情书精选:I'm So Sorry, Baby对不起宝贝
英语美文:一双丝袜(有声)
精选英语美文阅读:爱的奇迹 Keep on Singing
英语美文30篇系列之21
美文欣赏:海边漫步
浪漫英文情书精选:Good Morning早上好
精选英语散文欣赏:平等的爱
浪漫英文情书精选:Keep You Forever永远温存着你
精美散文:守护自己的天使
浪漫英文情书精选:Could This Be Real?这是真的吗?
精选英语美文阅读:假如生活欺骗了你
英语美文:生命这个奇迹
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