首页
登录
职称英语
[originaltext]Even the dirt on the ground is likely making climate change worse
[originaltext]Even the dirt on the ground is likely making climate change worse
游客
2024-01-22
66
管理
问题
Even the dirt on the ground is likely making climate change worse, a new study finds.
Scientists studied device readings, soil measurements, plant growth details and satellite observations from around the world. Their work is the most complete study yet on the subject. They found a sharp increase in carbon released into the atmosphere by bacteria and fungi in soil from 1990 through 2014. Researchers explain that the carbon comes from the dead plants and leaves the microbes eat. As temperatures rise, the microbes eat more. And the more they eat, the more carbon they make into carbon dioxide and release into the atmosphere. This uncontrolled cycle speeds up and intensifies climate change, says Jerry Melillo of Marine Biological Laboratory in Massachusetts. Melilo was not part of the study.
Overall, soil releases about nine times more carbon than human-caused activities. But that is part of a natural cycle: The amount of carbon released into the air is about equal to the carbon oceans and plants take in. However, carbon released from fossil fuel causes an imbalance. Burning coal, oil and natural gas puts more carbon into the atmosphere than nature can take out. The additional carbon heats the air and soil. And as the air and soil get hotter, the earth will release yet more carbon that it has been holding. If something isn’t done, “we are really in trouble,” said Rattan Lal of Ohio State University, who wasn’t part of the study. He added that proper soil conservation can help keep more carbon in soil. Conservation methods include avoiding turning the soil, covering off-season crops and leaving crop deposits on the ground.
Questions 19 to 21 are based on the passage you have just heard.
19. What does the speaker say about the new study?
20. What can we learn about carbon release?
21. What does Rattan Lal say at the end of the talk?
选项
A、Soil releases less carbon than human-caused activities.
B、Fossil fuel is the biggest release source of carbon dioxide.
C、Carbon released from fossil fuel causes an imbalance in nature.
D、Soil releases more carbon than the nature can take out.
答案
C
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3383486.html
相关试题推荐
和亲(peace-makingmarriage)政策可以追溯到西汉时期(theWesternHanDynasty)。当时西汉政府为了缓和与匈奴的
TheImportanceofChangeForthispart,youareallowed
[originaltext](22)Sportshaveunwrittenrules,sodoesbusiness—andviolato
[originaltext](22)Sportshaveunwrittenrules,sodoesbusiness—andviolato
[originaltext]Passionfruitistheediblefruitofthepassionflower.(16)Sp
[originaltext]Passionfruitistheediblefruitofthepassionflower.(16)Sp
[originaltext]M:EnglishLanguageCenter.HowmayIhelpyou?W:Yes.I’mcalli
[originaltext]M:EnglishLanguageCenter.HowmayIhelpyou?W:Yes.I’mcalli
[originaltext]M:EnglishLanguageCenter.HowmayIhelpyou?W:Yes.I’mcalli
[originaltext]W:Heytaxi!M:Whereto?W:Well,I’mgoingtotheNationalMuse
随机试题
JustlikeChinese,Westernersgivegiftsonmanyoccasions,suchas,onbirt
Inorderto______thesegoals,wehavetoworkevenharderthanbefore.A、accept
【B1】[br]【B19】A、watchedB、hadbeenwatchingC、hasbeenwatchingD、hadwatchedB
惰性气体灭火系统适用于扑救A类(表面火)、B类、C类及电气火灾,可用于保护经常有
与速度标记Allegro、Andantino、Largo的中文意思匹配的一组是(
硫酸镁的肌松作用是因为A.抑制脊髓B.抑制网状结构C.抑制大脑运动区D.竞争Ca
医师处方是医疗机构诊疗活动中最重要的医疗文书,具有A:技术性 B:权威性 C
患者男,56岁,因多汗、尿失禁1小时被家人送入医院,双侧瞳孔1mm,肺部可闻及湿
多品牌战略的优点有()。A:符合产业发展规律 B:具有较强的灵活性 C:能充
由两层锚杆锚固的排桩基坑支护结构,在其截面承载力验算时,需要计算各锚杆和桩的内力
最新回复
(
0
)