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
29
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、It is the first study on the subject.
B、It is a longitudinal study on the subject.
C、It is an incomplete study on the subject.
D、It is the most complete study yet on the subject.
答案
D
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3383485.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]IhadspentmylastdayinLondonvisitingfriends,takingpic
[originaltext]IhadspentmylastdayinLondonvisitingfriends,takingpic
[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]W:Heytaxi!M:Whereto?W:Well,I’mgoingtotheNationalMuse
[originaltext]W:Heytaxi!M:Whereto?W:Well,I’mgoingtotheNationalMuse
随机试题
森林防火forestfireprevention
[originaltext]Venice,asmall,watersidecityinnortheastItaly,boilswit
关于出版物本量利分析中增值税项目的说法,正确的有( )。A.增值税分为销项增值
既是职业道德教育的主要内容,也是职业道德修养的主要内容的是()。A.人生观
夏季病毒性脑炎的常见病因是A.外感寒湿 B.外感湿热 C.感受温热毒邪 D
有直接肾毒性的药物是A.氯霉素 B.华法林 C.异烟肼 D.巴比妥 E.
下列主要自肾小管分泌排泄的药物是A.链霉素 B.奥美拉唑 C.青霉素 D.
PICC插管最常选择的血管是A.贵要静脉 B.正中静脉 C.头静脉 D.腋
以下说法正确的是()。A.2017年10-12月全国铁路旅客周转量合
强心苷对下列哪种原因所致的慢性心功能不全疗效较好A、甲状腺功能亢进 B、维生素
最新回复
(
0
)