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.
牛津苏教英语四年级教学计划-下册
牛津苏教五下《Unit 4 An English friend》word教案3篇
牛津苏教六下《Unit 1 Who is younger》word教案3篇
苏教牛津版英语一下《unit 5 Lesson 2》教学设计
牛津苏教五下《Unit 2 The English Club》word教案2篇
苏教牛津版英语一下《Unit2 How are you》教学设计2
苏教牛津版英语一下《unit2》教学设计1
苏教牛津版英语一下《Unit 5 On the road》教学设计
牛津苏教四下《Unit 3 What’s your job》word教案2篇
苏教牛津版英语一下《Unit10 Let》教学设计
苏教牛津版英语一下《unit 2》教学设计2
苏教牛津版英语一下《Unit10》教学设计
牛津苏教四下《Unit 1 A new student》word教案8篇
牛津苏教五下《Unit 10 review and check》word教案(2)
牛津苏教四下《Unit 4 Buying fruit》word教案2篇
牛津苏教四下《Unit 6 Let’s go by taxi》word教案2篇
牛津苏教英语五年级全册教案-下册
苏教牛津版英语一下《Unit2 How are you》教学设计
苏教牛津版英语一下《unit 5 Lesson 1》教学设计
苏教牛津版英语一下《unit 5 lesson 3》教学设计
牛津苏教五下《Unit 1 A new term》word教案2篇
苏教牛津版英语一下《unit1》教学设计3
苏教牛津版英语一下《Unit10 Let》教学设计2
牛津苏教英语五年级教学计划-下册
牛津苏教五下《Unit 8 At the weekends》word教案
牛津苏教四下《Unit 5 Review and check》(第一课时)word教案
牛津苏教四下《Unit 2 At a party》word教案4篇
牛津苏教英语四年级全册教案-下册
牛津苏教五下《Unit 10 review and check》word教案(3)
牛津苏教四下《Unit 5 Review and check》word教案
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